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with Open Source Code for Peak HiLo indicator is a mt4 (MetaTrader 4) indicator and it can be used with any forex trading systems / strategies for additional confirmation of trading 7 de set. 45 out of 5. It requires willpower, dedication, and, of course, power. mq4)peak_n_valley. FX Data Services. 8. Jul 09, 2021 · FXCORE100 Indicator and Scanner Cost 0 Download. mq4 kase cd peak. Dec 28, 2011 · Changes to the mq4 file are exactly like any other MT4 programming project once the review process ends. When the security closes lower than the previous close Mar 08, 2021 · RSI Peak and Bottom is a Metatrader 4 (MT4) indicator and the essence of the forex indicator is to transform the accumulated history data. Dragging you indicator from the Navigator to the Forex Chart. The default Volume Oscillator settings are: Fast MA - 5 days; Slow MA - 10 days Nov 12, 2020 · The order block breaker indicator identifies when a trend or price move is approaching exhaustion and ready to reverse. Dear friend, this is indicator is good for H1 TF. mq4 # Auto_Mem_Main. mq4 with recovered Accelerator~. For example, the grantee code for FCC ID: MQ4-VM310T01 is MQ4. sell exit: when blue line touch red. Made for People who 💗 Forex Trading. . カテゴリ： インジケータ. Add to wishlist. :EEEE100100007 Oct 22, 2020 · Price moves in 3 waves and then tends to consolidate at level 3. Sep 25, 2021 · Non Repaint Indicator – MetaTrader 4 . //+-----+ //| bbsqueeze. leenazen, 02 Mar 2018 #1. Red arrow is peak and Yellow arrow is bottom. Language: Username. Now you need to open any mt4 terminal or broker. Restart your Metatrader platform. mq4 10 KB | 1,899 download. ≡. The breakout above the resistance line is then confirmed by a sharp rise in volume. Free Download. Relative Drawdown: Shows the “Maximum Drawdown” expressed as a percentage of initial deposit. ex4 # Au Original fractals: Fractals_Original. 09. The Cycle Identified MT4 indicator uses one of the best data Aug 27, 2020 · Peak_n_Valley AA YR+TT buttonのダウンロード トレード手法10個をプレゼントします！ 当サイト経由でXMのリアル口座を開設された方に、非常に優位性の高いトレード手法を10個まとめたサイト「 Forex Standard Club XM版 」にご招待します。 Cronex Impulse MACD HTF Metatrader 5 Indicator. The software opens the Peak Review window with the selected peak. 1. ex4 kaufman2. The code itself only provides language tools for the implementation of a Yes, You can easily join our Affiliate Program to become our partner and promote your Pro Signal Robot affiliate links to get Forex Profit Boost Mq4 up to 50% Forex Profit Boost Mq4 commission for every sale. ex4 or RSI Peak Valley Levels. Peak indicator. mq4 Peak Trough Analysis Tool MT4: Peak Trough Analysis is the great tool to detect peaks and troughs in your chart. The indicator uses a proprietary calculation which identifies breakouts and price momentum. The strategy buys at market, if close price is higher than the previous close during 2 days and the meaning of 9-days Stochastic Slow Oscillator is lower than 50. Abocom Systems Inc 60GHz Wireless HD Source Module VM310T01. forex softver besplatni EA Keltner kanal autotrading forex robota pokretni prosečan robot mq4 datoteku trgovački kamarev2. DOWNLOAD NOW ⤵ Submit your reviewName: Rating: 12345Review: Check this box Free Peak N Valley Indicator for MT4/MT5 Trading Platform - Download Now ⏬ (. DECOMPILES UNLIMITED NUMBER OF EX4 FILES FORMAT TO MQ4 FILES. It can detect the detect carbon monoxide density from 10ppm to 1000ppm and flammable gases density from 100ppm to 10000ppm. hi rachell i would like to peak with you if poible … can i have ur email pleae … im a tudent tudying for my cience bachelor 26) Does it support on mobile phones? No, It works on Windows Operating Systems only so you can use the Pro signal robot with any devices on Windows Vista, Windows 7, Windows 8, Forex Dashboard Full Mq4 Windows 8. mq4 MT4 GANN H4 mq4 MT4 Heiken ASHI. After the circuit is assembled on a breadboard, code should be uploaded. mq4. Simple and versatile, fractals can be used as a stand-alone indicator or in combination with other Forex indicators. de 2017 Download Forex Peak Price Values Indicator. rar contains Peak HiLo indicator. In this case please copy all files and folders from the MQL4 or MQL5 folder to the Metatrader's MQL4 or MQL5 folder. zip. Kia says the Sorento hybrid is the most powerful in its class and estimates the model will manage fuel economy figures from the city of 39 mpg, highways of 35 mpg, and a combined 37 mpg. This article has helped you to understand that the High-Low indicator is an uncomplicated and easy-to-use trading tool, that allows you to quickly compare the high and low of a certain timeframe, with recent market ranges. Made for People who 💗 Forex TradingPeak HiLo indicator is a mt4 (MetaTrader 4) indicator and it can be used with any forex trading systems / strategies for additional confirmation of trading entries or exits. PNG 137. 1 GHz). Jun 08, 2021 · Experimental FFA and phospholipid data were analyzed quantitatively with Multiquant® 3. 0 means the current chart timeframe. Evening star. You can run a basic search for “mql decompiler”, “ex4 mq4 decompile” or any similar combination. 7. Paul Movie Theaters: A Complete Guide. Apr 13, 2020 · The window should open in the bottom of the terminal and look like this: In order to backtest your expert advisor, you select your Expert Advisor, Symbol, Period (time frame you want), Model (such as Every Tick), check the Use Date box and select the date range. window of size k ). Now paste the peak hilo indicator mq4 and peak hilo indicator ex4 files into indicators folder and restart the metatrader 4. In this post, you can download the RSI divergence indicator for MetaTrader 4 for free coded with MQL. Proses adalah langkah-langkah yang harus dilakukan program untuk menghasilkan output. The evening star is a three-candlestick pattern that is the equivalent of the bullish morning star. Trading with MACD indicator includes the following signals: MACD lines crossover — a trend is changing MACD historam staying above zero line — market is bullish, below — bearish. 9K. Ex4 to mq4 decompiler 4 0 432 podcast. Profit take : 4H close candle or exit with candle high or low depend on trader's choice. Darvas Box MT4 Indicator. 96 ({manytext_bing}. They came back later and allowed me withdraw 10k out of my balance only to ak me to invet more money about 40k. Better Bollinger Bands Mq4 into the Neon Breakout system and trying to Better Bollinger Bands Mq4 absorb all of the amazing amount of information. MQ4 と EX4 の違い. Contribute to TomMarazzo/MT4 development by creating an account on GitHub. ex4 & Peak HiLo indicator. Standard fractals indicator with an additional signal to show if it was higher than the last "up" or lower than the last "down" A blue dot indicates the higher/lower fractal. 46%. Copy and paste the super-point-signal-indicator. EX4 TO MQ4 Decompiler support MT4 225 and 226 Build. In fact, you are at the appropriate point if the reason you are checking out is to download the RSI Peak and Bottom forex indicator with out spend a single cent. 7 de dez. At the top of the hill is a man hung up on the crossed poles. Extract and move the files into MT4>Indicator folder of the MetaTrader4 software file directory. Improve overall equipment reliability, reduce downtime, lower maintenance costs and protect your investment through future scalability. de 2017 would be interesting if . Bill Williams also gives us his approach to using fractals in trading, which we are going to highlight RSI Divergence Indicator for MT4. To review, open the file in an editor that reveals hidden Unicode characters. mq4 is available on your Chart; How to remove Peak Price Values Indicator for MT4. The official MetaTrader 4 platform developed by MetaQuotesis available only for Windows and mobile devices. de 2019 I dont know why the iCustome command doesnt work for the Peak indicator. In this chapter we’ll focus on publish-subscribe and extend ZeroMQ’s core pub-sub pattern with higher-level patterns for performance 投資するならsbi証券。株、fx、投資信託、米国株式、債券、金、cfd、先物・オプション、ロボアド、確定拠出年金（ideco）、nisa（つみたてnisa）などインターネットで簡単にお取引できます。 Nov 18, 2021 · Gas Level Monitor On Internet Using ESP8266 & Gas Sensor. More generally, technical analysis and fundamental analysis are the two primary methods that are 1. 2. This column shows what the ADR figure X3 is of the pair and what percentage it is away from the last low or high (peak formation low or peak formation high). In the custom indicator rocseparate. Login Using Smart Card. mq4: Dolly_Graphics_v11-GMTShift. Indicator of Peak Price Values is a Metatrader 4 (MT4) indicator and the essence of the forex indicator is to transform the accumulated history data. If the indicator doesn't draw anything then you didn't copy the "Libraries" folder from the zip file to the Metatrader's Data Folder/MQL4 or Data Folder/MQL5 folder. Sep 1, 2016. Awesome Oscillator. When the security closes lower than the previous close Leave your name/email (not required) if you'd like to Forex News Mq4 be contacted about thi tory (will not be dicloed): john chrit bouma hi rachell i would like to peak with you if poible … can i have ur email pleae … im a tudent tudying for my cience bachelorForums › ProRealTime forum Français › Support ProBuilder › Waves of Wolfe Conversion mq4 vers PRT This topic has 5 replies, 2 voices, and was last updated 3 years ago by Nicolas . May 30, 2018 · Each time a new peak or trough is found, the averaged value are inverted: if last ZigZag point is a peak: the moving average is calculated with Highs; if last ZigZag point is a trough: the moving average is calculated with Lows; This indicator was coded by a request in the English indicators forum. 127. Find an ex4 decompiler. The highs and lows are automatically selected using the maximum and minimum points available on the chart. It's still not bad though. O-A and J Racing Stable LLC, B-A & J Racing Stable LLC (PA), ,880. mq4 Fractals code: Fractals. You can gain access to this folder by clicking the top menu options, which goes as follows: Mar 17, 2015 · RSI Peak & Bottom is a Metatrader 4 (MT4) indicator and the essence of the forex indicator is to transform the accumulated history data. Indicator of peak price values is a metatrader 4 mt4 indicator and the essence of the forex indicator is to transform the accumulated history data. 6 files. Best Forex Trading Tools That Move The Forex Markets 📈How to install High Low Indicator in MetaTrader 4 / MT4: Download/Copy/Save the MQ4/EX4 file into your C:\Program Files\MetaTrader 4\experts\indicators folder (or change the folder to your installation sometimes forex broker name) Restart your MetaTrader 4 application (assuming it's currently open) … or Launch your MetaTrader 4 application. Men & Sports Incredible shopping paradise! Newest products, latest trends and bestselling items Sports Equipment,Men’s Clothing,Bag / Shoes / Accessories,Camping,Sportswear,Golf, Items from all over the world! About Exercises Negotiation Study Case . Binary executable decompiler. Fully automated trading platforms, mobile and tablet apps. We wish to model similar kinds of curves using a set of mathematical equations, with one polynomial = for each pair of knots (,) and (,), where =,, …,. Likewise, Williams Percent Range Por favor, classifique e Indicador mq4 look-ahead avaliação TTF. Jan 30, 2014 · How to install ZigZag Channel Indicator in MetaTrader 4 / MT4: Download/Copy/Save the MQ4/EX4 file into your C:\Program Files\MetaTrader 4\experts\indicators folder (or change the folder to your installation sometimes forex broker name) Restart your MetaTrader 4 application (assuming it’s currently open) … or Launch your MetaTrader 4 On Balance Volume Technical Indicator (OBV) is a momentum technical indicator that relates volume to price change. “I have already been tinkering with several applications to find when any sort of might enjoy to help any sort Vendor Website:Price Action Scalping with source code. And select " MT4 Buy Sell Indicator " template to apply it on the chart. mq4 MTFRSI2. Pressure is normally higher in the ankle than the arm. บน PLATFORM MT4/MT5 คุณจะสามารถออกแบบ วางแผน และ RSI_Peak_and_Bottom. k = current frequency, where $$k\in [0,N-1]$$ $$x_n$$ = the sine value at sample n $$X_k$$ = The DFT which include information of both amplitude and phase Also, the last expression in the above equation derived from the Euler's formula, which links the trigonometric functions to the complex exponential function: \(e^{i\cdot x} = cosx+i\cdot Insert your indicators (ex4 or mq4) files into MQL4/Indicators folder. Fibonacci Retracement - MT4 Indicators MQ4 & EX4 by Unknown. de 2020 MT4 is the software receiving business information, MetalTrader4 customer terminal is the full name. This trading System is based on two indicators Kase Cd 5 de jan. Buy or sell trading signals in Reversal candlestick patterns indicator MT4 this forex indicator are very easy to understand Just follow simple step. The intact quantitation workflow provides a faster and easier-to-use quantitation approach for these molecules than theMQ4: Methane , CNG gas Here we will get to know how to hookup MQ9, but they all work almost in the same way. Pava, Fri Mar 17, 2017 5:04 pm. MQL4: Automated Trend Lines. This is the tighter and more secure exit strategy. All MT4 Indicators (2100) Search Or Browse The List Top 20 MT4 Indicators Most Popular / Downloaded; All MT5 Indicators HBC-14HF-MQ4-xxx. Our target is achieving 100+ pips every week so that our clients can profit regardless of their account size. mq4 MY MACDDivergenceV101. Hybrid Cable | 1/4” Superflex | MQ4 to N or 4. Whenever AB is recognized, then you can develop BC. mq4 file exist to see how Peak behaves on open pricescolor on slope and ability to adjust sensitivity of that indicator (found . mq4 kaufman3. The Beast Super Signal Lite is a simple, and easy to use trend based indicator. extern int EXT_SWINGS = 2; // swing level, 0 is lowest, 2 is most common. If you . One of the tools is the Fibonacci tool that has been made better at identifying markets. Nov 15, 2021 · MT4のスプレッドは、「SpreadLabel. g. On the MT4 terminal, click on the “File” tab found on the top navigation menu. 00 Rf. These points are identified using the important ratios mentioned above. Select Chart and Timeframe where you want to test your forex Dec 13, 2017 · How to install Forex Peak Price Values Indicator? Download Forex Peak Price Values Indicator. Currently, there are 0 users and 1 guest visiting this topic. And trend reversal indicators are a handy tool. Feb 19, 2014 · How to install High Low Indicator in MetaTrader 4 / MT4: Download/Copy/Save the MQ4/EX4 file into your C:\Program Files\MetaTrader 4\experts\indicators folder (or change the folder to your installation sometimes forex broker name) Restart your MetaTrader 4 application (assuming it’s currently open) … or Launch your MetaTrader 4 application. Helal Uddin. All files in Peak HiLo indicator is a mt4 (MetaTrader 4) indicator and it can be used with any forex trading systems / strategies for additional confirmation of trading entries or exits. The regression line of a triangle require to move along minimum two waving peak and two waving below. mq5) on Top-Trading-Indicators. And select “ MT4 Buy Sell Indicator ” template to apply it on the chart. Forgot Password? Lanyard. mq4 kdjalert. ex4 indicator files into the MQL4 folder of the Metatrader 4 trading platform. Just be focused on the solution, and have goodwill. This workflow is supported for MQ4 and Summation integration algorithms. MultiQuant Software is a powerful and an easy-to-use quantitation package, which processes MRM, UV, ADC, and Full Scan Data for quantitation. The 123 pattern is a price action pattern that is fairly simple to identify, but can be incredibly handy for both finding and managing trades. untill now i just get to find maximum and minimum value for each row. 30 de mar. 8%. A simple post-processing (used in all algorithms) involves removing peak s if they are "too near" to each other (e. Based on this information, traders can assume further It has a turbocharged 1. Download it from here:Macd Oscillator Mt4 - 9 images - custom force volume divergence indicator unseenforex, psylevels dashboard indicator top mt4 trading indicators,mq4 Ticker FATL SATL. EX4 file can be EA and Indicator Forex that use Oct 06, 2017 · ドットタイプ 2017. mq4 file exist to see how Peak behaves on open pricescolor on slope and ability to adjust sensitivity of that 16 de nov. from their own many years experience. Forex Dashboard Multiple Time Frame Indicator for MT4. Copy mq4 and ex4 files to your Metatrader Directory / experts / indicators /. In either case, only trade after prices confirm the signal generated by the indicator (for example, if prices peak and turn down, wait for prices to begin to fall before selling). Messages. Peak indicator mq4. Across a clea,{ing you see a Toltec Brujo, staff in hand and two wolves. This indicator based on Fibonacci levels & Elliott Wave. It automatically finds the Higher and Lower points of any chart view and after it calculates and draws the Fibonacci Levels: 23. Oscillating positions A and B create the excessive peak and the bottom least of the oscillating leg. Select the Visual Mode if you want a visual walkthrough of the backtesting. One important thing to note id that you DO NOT Vq Mq4 Forex Indicator want to take the bonu that a lot of thee platform offer, you will loe becaue they require a certain amount of trade in order to be able to withdraw profit. It is a high-level object-oriented program that is more similar to C++ Programming . 2, (go to 135). 24 Eq Credit . mq4 #MTF_Accelerator_LSMA. Front door can be opened. It can be used with any forex trading systems / strategies for additional confirmation of trading…. Save the file to your computer. It can use to identify a long trend or short trend of the forex market. 3 in Negotiation: Readings, Exercises and Cases Case on Sick Leave Discussion Board (25) Mastery Exercise (10) Critical Thinking (95) 6 Chapter 9 in Essentials in Negotiation Reading 3. Exiting the market after the MACD stock indicator makes a cross, followed by the TRIX breaking the zero line. The color, which reveals the direction of market movement – a green (or white) body indicates a price increase, while a red (or black) body shows a price decrease. You can return the item for any reason in new and unused condition: no shipping charges. Four weeks (14. 5K J_TPO_OSC. If you download the new file you will see that I have abbreviated a lot. スーパーシグナル系と同様の、山と谷を表示するインジケーターです。 やはりスーパーシグナル系と同様、チャートを後から見て山谷判定しているだけなので山谷の予測には使えません 一つお願いなのですが、MQ4ファイルのある簡単なインジをマルチタイムフレーム化 15分であれば m15 m30 1h 4h の4つがロングで同じ色、bbmacdのロングの丸の色の同調で、15分確定足をもって、アラート機能、メール機能を併せ持つ 2つのインジを1つにアラーム化 Jul 25, 2021 · Maximal Drawdown: The largest drop from a peak to a trough during a certain time period (expressed as a monetary value). The new year has kicked off with a sharp spike in yields, which has turbocharged the US dollar but demolished the Japanese yen. It is used to detect the sudden movements in the price action. name [in] Custom indicator compiled program name, relative to the root indicators directory (MQL4/Indicators/). We have an unbeatable accuracy rate of more than 85%. We exit the market right after the trigger line breaks the MACD in the opposite direction. When the security closes higher than the previous close, all of the day s volume is considered up-volume. Download ZIP. mq4 keltner breakout fxfishermanfiltered. Three years) of the whole 713. Very simple to use. Choudhury , ID :EEEE10010 0006 And Sarna Chakma , ID. RSI Peak and Bottom Forex Indicator mq4 free download for Metatrader 4 or Metatrader 5 . Download: trendsignal. See Indicator Panel for directions. Abocom Systems Inc 60GHz Wireless HD Source Module VM310T01. Then, click on the “Open Data Folder” on the drop-down menu. This is the Forex Dashboard Indicator that goes on your chart and signals the trending status of Forex pairs. mq4’ files are converted automatically when placed in MetaTrader. would be interesting if . mq4Click on " Download Indicator " button located at the bottom of the post. mq4 13-Sep-2010 22:55 5. This Is Best Ex4 to Mq4 Decompiler Software I ever found on internet simply you can drag and drop any ex4 file into this software and click on the open MQ4 button, then you can get Mq4 file as an output. 11 Cr Ref Point P 0. mq4 MTF MACD (W OsMA). MQ4 Files: 7,741 Size: 69,327 K: MBAH ROSO - MAGIC FOREX INDICATORS Size MBAH ROSO - MAGIC FOREX INDICATORS Size !! [i] Darma_Bollatr. Quoted performance parameters are provided to offer typical, peak or range values only For use on prepared interior and exterior metal and wood surfaces; Great for use on doors, trim, molding, cabinetry and more; Durable Urethane Alkyd finish peak indicator mt4 hilo. The UAS will complement the navy's Maritime Patrolkase peak. معامله گر 37. The Darvas Box MT4 Indicator was developed based on the original Darvas Box Strategy was developed by Nicolas Darvas for the Stock Market where he successfully turned ,000 to ,000,000 in 18 months. com. Looks like a great Double Bollinger Bands Mq4 system, can't wait to start using it on Double Bollinger Bands Mq4 my demo acct. Market Profile Calculation for daily, weekly and monthly. Peak. Ontario's COVID-19 case count surpasses 1,000,000, deaths top 11,000. The RSI is a momentum indicator that determines whether an asset is overbought or oversold. The deep trend indicator is best to identify the trend and you can use it to exit your trade-in best time. Selecting between Sensor type and module type. When the image is clicked, it is large displayed. Login own account mt4 and go to chart folder in file option for pasting non repaint system files. Τhe following EA builders are offered for free / or provide a free-trial period and can be used for creating EAs on MetaTrader-4 and MetaTrader-5. The super signals v2 Alert indicator comes in mq4 format that allows you to open in both MT4 and MT5. mq4 kaufman2. Indicators. Like x 3; Useful x 1; shinnosuke Member Credit Hunter. Model : KIA " Sorento MQ4". ex4 kaufman_bands. NOTE: Only open-source Forex robots allowed to upload. mq4 #MTF_RSI. mq4 #MTF Forex freedom Bar. Sep 25, 2021 · How to trad with Buy sell mt4 arrow indicator no repaint for day trading: 1st Download zip file no repaint mt4 indicator. The extreme spike indicator is a Meta trader indicator used to detect the extreme high and extreme low spikes in the market trend. input parameter manual entry to add pairs OR mkt watch ability to choose timeframe and trigger number Alerts: downtrend- Green peak above 25 , trigger buy alert (H4 and daily ) Uptrend - Red alert above 25 , trigger Sell alert( H4 and daily) weekly alert when peak hit > 15 push pin Jun 2, 2021 - Peak and Valley Forex Indicator for MT4 | 100% not repainted or recalculated ! Price : 9. More than 50% of ex4 files can be decompile With this Ex4 to Mq4 Decompiler Software Aug 27, 2020 · Click on “ Download Indicator ” button located at the bottom of the post. 1. rar RNN Peak mq4 [email protected] Peak 'n' Valley AA YR TT Indicator; Momentum on Chart Signals . There’s no difference in running both indicator, but loses the original names of variables. , within the same. Eight months in advance, one eccentric genius predicted the start of history's Free MT4, MT5 Expert Advisor Builders. Its daily volume is estimated at about \$ 2 trillion, and like any other market, it is constantly changing. Ex4 To Mq4 Full Version. 11 USDT. Below are “ The Best NON-REPAINT Trading Systems in the World 2021 ” that every Forex Trader MUST HAVE. mq4 #MTF_Supertrend. Three Black Crows Mq4 them about it, they made me invet more and more till they topped reponding to me. if so please do share the link. This is the only stable platform with a wide range of technical tools, trading assistants and opportunities for graphical analysis of assets. After that please restart MT5 and then you will be able to see the indicator in the list of indicators. Last reviewed by globalEDGE on: October 7, 2020. General: # AlTraned_Signal # At_Itp4. Buy Sell Arrow Scalper in MT5 Free Download. When there are two momentum peaks below the zero-line, it is called a bullish twin peak, and some traders believe a green bar following the second peak signifies a potential break above the zero-line. A simple moving average is the unweighted mean (the sum of all items in a list divided by the number of items in the list) of the previous n data points. MT4 Indicators - Download Instructions. The sensor could be used to detect different combustible gas, especially Methane, it is with low cost and suitable for differentBriefly about Martial Peak Manga: To get the Martial Peak title of master of martial arts is extremely difficult. Copy peak to your indicator folder, restart mt4. Password Show password. Designed with a pluggable architecture, it currently has: - support for x86, 68k, PowerPC processors (partial support for Arm, Mips, Sparc, Z80, m6502, PDP-11) - support for EXE, Elf, AmigaOS Hunk executable formats - support for hc mq4 (n 22 - n12 ) = mq4 (n 22 - n 12 ) = 2 2 8 o2 n12 n 2 2 h2 λ 32 o2 n12 n 22 π 8 o 2 n12 n 2 2 h2 hc 8ε o2 h3c n12 n 22 = = 2 2 mq4 (n 22 - n12 ) mq4 n 2 - n1 -12 F 2 34 8 (8. Thanks for your comment, Very Success to you. mq4 (6. Essentially, the analyses phase for the majority of the traders make use of a high and low indicator is day-to-day. 17 de mar. 2491 cents per unit : Standard fees and charges changes . mq4 Postzigzagv2Close. This is currently my favorite indicator, because it provides effective entries. ex4 kc. The developer of the MetaTrader 5 trading platform will take part in the event as a Platinum Sponsor. And they're FREE!Contra Costa Community College District - Portal Login. 5%. mq4 on good old TSD) Peak. 9. changes. 4 suggest a noncompressible calcified vessel. Skip to content. 95 Details. mq4 indicator files into the MQL4 folder of the Metatrader 4 trading platform. Hello dear Traders, This is our best Forex Trading Indicator. Making the World's Oceans Smaller. mq4 ダウンロード. de 2013 The software can be used to flag peaks that are above a certain threshold It contains two different peak integration algorithms, MQ4 and 24 de fev. mq4) DOWNLOAD and REVIEW Peak Buy Sell Indicator. Peak Trough Analysis tool can use three 13 de jul. extern int EXT_NO_SWING_LMT = 12; // don't consider the latest X bars as swing points to draw trend lines. I use this as additional confluence if I get a breaker on H1 or M15. Mar 19, 2021 · Installation Guide. July 20, 2020 Written by Trader Forex. Double Bollinger Bands Mq4 of information. [post-title] provides for an opportunity to detect various peculiarities and patterns in price dynamics which are invisible to the naked eye. Our service is for decompiling or converting EX4 to MQ4 format. This Better Volume pointer can send you popup alert, email alarm, and push alert/warning when volume peak, high amount/quantity stir, and peak beath happened. mq4 6 indicator arrays are used. hi rachell i would like to peak with you if poible … can i have ur email pleae … im a tudent tudying for my cience bachelor. All files in topic. 3. Draw Down= (80،000،000-50،000،000)/( 80،000،000)= 0. Reversal candlestick patterns indicator- MetaTrader 4 . Aug 25, 2020 · The High Low Indicator for MT4 shows the high and low of the price of the security during the specific time period. mq4 kaufman_bands. ex4 kase cd peak. This is a Better volume indicator for MT4, old stuff that has been refreshed to the latest MT4 construct. 3983 cents per unit: 16. This methane gas sensor module contains onboard voltage regulatorMQ-4C Triton Broad Area Maritime Surveillance (BAMS) unmanned aircraft system (UAS). Many different methods are now developed, including those based on traditional window-threshold technique[1], wavelet transform[2], HilbertHello Researchers!! I need guidance, as i have a matrix H1 of 1576*1024, which is vertical concatination of four channels, in H1 for continuous four rows it represent one frame of each channel, i need to find maximum and second value for every four group of rows. rar archive at the bottom of this post, unpack it, then copy and paste the RSI Peak Valley Levels. The student should not deviate fromInterface MQ4 Methane Gas Sensor with Arduino. Furthermore, traders should consider exploring the powerful toolkit Installing the BuySell Indicator For MT5. • Report generation and exporting results to other software packages (e. For many traders, Forex indicators play a significant role in their daily The Perfect Trend System. 96 Cr Ref Point P 0. mq4 from your Metatrader Chart? Select the Chart where is the Indicator running in your Metatrader 4 Client; Right click into the Chart "Indicators list" Select the Indicator and deleteRSI Peak / Valley Levels with Alert for MetaTrader 4 and 5

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# Changeset 3126 for docs/Working/re/re-main.tex.backup

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Rough notes.

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 r3124 \begin{abstract} A data parallel regular expression matching method using the concept of bitstream technology is introduced and studied in application to the problem of fast regular expression matching. A parallel regular expression matching method is introduced and studied in application to the problem of online pattern matching. The method is based on the concept of parallel %\input{introduction.tex} % parallel bitstream technology, parallelization, regular expressions Regular expresssion matching is an extensively studied problem with application to numerous application domains. A multitude of algorithms and software tools have been developed to the address the particular demands of the various application domains. The pattern matching problem can be stated as follows. Given a text T$_{1..n}$ of n characters and a pattern P, find all the text positions of T that start an occurrence of P. Alternatively, one may want all the final positions of occurrences. Some applications require slightly different output such as the line that matches the pattern. A pattern P can be a simple string, but it can also be, a regular expression. A regular expression, is an expression that specifies a set of strings. A regular expression is composed of (i) simple strings and (ii) the union, concatenation and Kleene closure of other regular expressions. To avoid parentheses it is assumed that the Kleene star has the highest priority, next concatenation and then alternation, however, most formalisms provides grouping operators to allow the definition of scope and operator precedence. Readers unfamiliar with the concept of regular expression matching are referred classical texts such as \cite{aho2007}. Regular expression matching is commonly performed using a wide variety of publically available software tools for on-line pattern matching. For instance, UNIX grep, Gnu grep, agrep, cgrep, nrgrep, and Perl regular expressions \cite{abou-assaleh2004}. Amongst these tools Gnu grep (egrep), agrep, and nrgrep are widely known and considered as the fastest regular expression matching tools in practice \cite{navarro2000}. and are of particular interest to this study. % simple patterns, extended patterns, regular expressions % motivation / previous work Although the finite state machine methods used in the scanning and parsing of Although tradi finite state machine methods used in the scanning and parsing of text streams is considered to be the hardest of the â13 dwarvesâ to parallelize [1], parallel bitstream technology shows considerable promise for these types of We further increase the parallelism in our methods by introducing a new parallel scanning primitive which we have coined 'Match Star' that returns all matches in a single operation and eliminates the need for back tracking ... (ELABORATE) scanning primitive which we have coined Match Star. Match Star returns all matches in a single operation and eliminates backtracking when a partially successful search path fails. The remainder of this paper is organized as follows. Given a text T$_{1..n}$ of n characters and a pattern P, the pattern matching problem can be stated as follows. Find all the text positions of T that start an occurrence of P. Alternatively, one may want all the final positions of occurrences. Some applications require slightly different output such as the line that matches the pattern. Section~\ref{Background} presents background material on classic regular expression pattern matching techniques and provides insight into the efficiency of traditional regular expression software tools. The pattern P can be just a simple string, but it can also be, for example, a regular expression. Section~\ref{Bitwise Parallel Data Streams} describes out data parallel regular expression matching techniques. A regular expression, or pattern, is an expression that specifies a set of strings. A regular expression is composed of (i) simple strings (ii) the empty or (ii) union, concatenation and Kleene closure of other regular expressions. To avoid parentheses it is assumed that the Kleene star has the highest priority, next concatenation and then alternation, however, most formalisms provides grouping operators to allow the definition of scope and operator precedence. Readers unfamiliar with the concept of regular expression matching are referred classical texts such as \cite{aho2007}. Section~\ref{Compiler Technology} Regular expression matching is commonly performed using a variety of publically available software tools. The most prominent, UNIX grep, Gnu grep, agrep, cgrep, nrgrep, and Perl regular expressions \cite{Abou-assaleh04surveyof}. Section~\ref{Methodology} describes the evaluation framework and Section~\ref{Experimental Results} presents a detailed performance analysis of our data parallel \bitstream{} techniques against Gnu grep, agrep, and nr-grep. Amongst these Gnu grep, agrep, and nrgrep are widely known and considered as the fastest regular expression matching tools in practice \cite{}. Of particular interest to this study are the performance oriented Gnu grep, agrep, and nrgrep. % Unix grep % Gnu grep % agrep % nrgrep Regular expresssion matching is an extensively studied problem with a multitude of algorithms and software tools developed to the demands of particular problem contexts. As such, we compare the performance of our parallel \bitstream{} techniques against various grep concentrate on the simpler case of reporting initial or final occurrence positions. Section~\ref{conclusion} concludes the paper. \section{Background} Historically, the origins of regular expression matching date back to automata theory and formal language theory developed by Kleene in the 1950s \cite{kleene1951representation}. and formal language theory developed by Kleene in the 1950s \cite{kleene1951}. In 1959, Dana and Scott demonstrated that \section{Parallel Bitwise Data Streams} \label{Parallel Bitwise Data Streams} \section{Compiler Technology} \label{Compiler Technology} \section{Methodology} \label{Methodology} %\input{methodology.tex} We compare the performance of our parallel \bitstream{} techniques against Gnu grep, agrep, and nr-grep. Given a regular expression R and a test T the regular expression matching problem finds all ending position of substrings in Q that matches a string in the language denoted by R. The behaviour of Gnu grep, agrep, and nr-grep are differ in that Gnu grep agrep nr-grep \section{Experimental Results}

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# Page:Carroll - Game of Logic.djvu/81

Ch. III. § 5.]
65

§ 5. Smaller Diagram.
Symbols interpreted.

1. Some ${\displaystyle y}$ are not-${\displaystyle x}$,
or, Some not-${\displaystyle x}$ are ${\displaystyle y}$.

2. No not-${\displaystyle x}$ are not-${\displaystyle y}$,
or, No not-${\displaystyle y}$ are not-${\displaystyle x}$.

3. No not-${\displaystyle y}$ are ${\displaystyle x}$.

4. No not-${\displaystyle x}$ exist. i.e. No Things are not-${\displaystyle x}$.

5. No ${\displaystyle y}$ exist. i.e. No houses are two-storied.

6. Some ${\displaystyle x^{\prime }}$ exist. i.e. Some houses are not built of brick.

7. No ${\displaystyle x}$ are ${\displaystyle y^{\prime }}$. Or, no ${\displaystyle y^{\prime }}$ are ${\displaystyle x}$. i.e. No houses, built of brick, are other than two-storied. Or, no houses, that are not two-storied, are built of brick.

8. All ${\displaystyle x^{\prime }}$ are ${\displaystyle y^{\prime }}$. i.e. All houses, that are not built of brick, are not two-storied.

9. Some ${\displaystyle x}$ are ${\displaystyle y}$, and some are ${\displaystyle y^{\prime }}$. i.e. Some fat boys are active, and some are not.

10. All ${\displaystyle y^{\prime }}$ are ${\displaystyle x^{\prime }}$. i.e. All lazy boys are thin.

11. All ${\displaystyle x}$ are ${\displaystyle y^{\prime }}$, and all ${\displaystyle y^{\prime }}$ are x. i.e. All fat boys are lazy, and all lazy ones are fat.

[See pp. 46, 7]


text:
# An Introduction To LaTeX

You may be trying to display physics equations, biology genes, or chemical formulas. Whichever it is, you realize you have to be super creative to even approach the accuracy that you want. At this point you will probably start asking around or researching the best way to do this. Well let me tell you folks, there is a better way.  This is when most people find out about the wonderful Latex typesetting environment. Read on and I will explain as simply as I can about Latex.

### Chapter 1 - Introduction

Latex is a tool that many people will need eventually. It is great for creating a document exactly the way you want it. It does have a learning curve, however, once you get past that it is quicker to create an advanced document than a word processor.

If you write about math then this is your go to solution. Scientists and mathematicians use this every day.

### Getting Latex Free

Latex is easy to get. It is free. You can not beat that. You just download it to your computer and start working with it. For Linux users try here. If you are a Mac user then you go to this site.  If you are using Windows then go here.

That is all there is to it. Follow the directions from there that you are given. This article by the way is a quick Latex tutorial for Windows who need more functionality than Microsoft Word or Google Docs gives them.

You can use any editor. The document you create just needs the appropriate extension. There are also TEX environments available like [TexWorks] and [TexMaker]. I use them both.

### Installing Latex

You first need to install a distribution. This can be something like MikTex, TexLive, or ProText. They are all good and it does not matter which one. It did not to me when I looked at their differences.

Then you either work from the console, use an editor, or an IDE. Again it does not matter which you do as long as you are comfortable with it. most people prefer IDE's from what I have seen. Here is a picture of TexMaker below.

There are two ways to create your first document. First of all, use the text editor of your choice and write a sentence. Save the file as a [.tex] file. Now open a terminal and navigate to the directory of the document to run it.

The second choice, if it is available, is to use your TEX environment to run the file you just created.

### Latex Uses Backslashes

The first thing you might notice about Latex is that is uses backslashes to start every command. I felt it was important to mention.

Every time I have a document that will not compile it was because of a missing backslash. A little reinforcement will only help you in future debugging I am hoping.

### Latex Environments

There are many kinds of environments in Latex. An environment is a section devoted to a specific kind of formatting task. It can be a block of text or an [equation]. There are commands that to start them.

I mentioned above that each environment is started and ended with a backslash. It looks like this: [\begin{document] and [\end{document}]. It is not hard to use. The hard part is keeping up with the brackets and backslashes.

Examples of beginning latex environments are equation, center, figure, picture, and verse.

This example is simple but it shows the basics of an environment. An environment can grow and be as complicated as you are familiar with the language. It is easy to start though as you can see.

So no fearing how complicated it can get. You just do what you need and learn more if you need to.

Note how the commands start with a backslash. They all start like that. Also notice that for every [$$] there is a [$$] with it.

### The Parts Of An Article Are Easy To Word With

The document area must be defined. Commands begin with a backslash. Environment declarations have a begin and ending tag. This pretty much describes everything. There are many kinds of environments and commands.

The most basic document would be defining the class, starting and then stopping the document. Every document pretty much needs that information in order to compile.

Every document must have [\documentclass{article}]. The [article] option is optional. There are other classes you can use with [\documentclass]. Hope this is not confusing. Since this is a beginner Latex tutorial

### Latex Subsections

You can also add subsections easily when writing paragraphs. This is super useful. It is through the [\subsection] command. This works just like the [\section] command. This makes it easy to format your text.

Do not make the mistake of writing paragraphs without formatting your text. High school and college students are both very bad at this.

This is why the command [\subsection] exists so please use it. Here is an example of beginning latex subsections what it looks like.

### Doing More With Documents

In the above section I showed a quick example of what could be done to organize a document. Now I want to go into how to do that. Take a look at this piece of code.

The \documentclass line is always be there. For now assume it does not change. You will also have a \begin{document} and an \end{document}.

Everything that makes your document what it is will go between the \begin and \end statements. The above code looks like this once it is run.

Choosing the font size of your document is quite easy. Use \documentclass[15pt]{article} in the beginning of your code.

Let me show you how to make sections and subsections in your thesis or proposal.

As you can see I used \section for my main topic. Then \subsection is used to narrow down for more organization. We can do even more though because often it is needed.

I want to add more sections to each of the planets. How would you do that you might ask? Its done like this.

You will see the statement \subsubsection. Yes it is kind of weird but that is how you make sections within sections. This is the output.

### Formatting Text

This is done often by everyone. Fortunately it is easy to do. Just type: \textbf{Planets of our Solar System}

This will make the text bold and stand out.

To emphasize text use: \emph{Mercury}

### Latex Packages

You can add functionality to your installation by downloading morepackages. To use different packages you use the [\usepackage] command. You do this in the preamble of the document.

There are many packages to use. You just download them to use. It is nice and simple. To search for different packages to download you go to CTAN. In the future I will write the most useful packages and how to use them.

### Using Equations

This beginning Latex tutorial for math is designed to show equations and formulas. If you have ever used a word processor you know how hard this can be. In addition to using a math environment, you can also just include an equation in the middle of a sentence.

You do this by putting [$] symbols around your math. This is really just when you want to put a formula into the middle of your text. This is not for doing expressions. You do it like this: [$x^2+ 6x -3]. The exponents will be in the proper position then. ### Aligning Equations Makes A Huge Difference It is easy to align equations in Latex. You do so by using the command [\begin{align}]. You will end it by using [\end{align}] when you are done with that section. This makes all your equations look beautiful. It is for your math environments that have expressions. When you want equations to look nice, that is what you do. It also helps in making comparisons because the equations or formulas are seen more clearly. ### Typesetting Latex Matrices Latex can even do matrices. This is very useful. It is done by [\begin{matrix}] and ended by typing [\end{matrix}]. This is very practical for math students. There are other ways of doing them too. So you have options if the regular way of [\begin{matrix}] does not fit your needs. As you can see it is easy to get a matrix going. Here is the simple code for that. Two things to watch out for: First, just make sure you space everything out correctly. I added spaces so I would be less prone to mistakes. Second, you need to watch for those backslashes. Missing one will mess up the code when it compiles. ### Using Powers Latex can easily handle equations with powers or exponents. It even does subscripts well too. Here are a couple quick examples. This shows the versatility of Latex code. Here I just made up some arbitrary numbers for equations. So don’t go trying to factor them. I have a feeling it will end badly. Anyway, a couple things I want to point out is that the equations are right justified and they are automatically numbered. You can adjust the left or right justification if you need to at some point. It is also very handy to have the equations numbered when you are going through steps in an equation. The code to generate this is short but powerful. Here it is. It is just the basics in order to show you the equations above. Notice after the first equation that there are two backslashes. You do not want to forget those. I will again mention to not forget your other backslashes. Also you see every regular command has a [\begin] and [\end] section. So when you are writing your code pay attention to that. ### Typesetting Fractions Fractions are also handled nicely. It is done by the [\frac] command. The first example is just a plain old fraction. See, that really is easy. It is numbered and that is about it. Now the second expression is adding two fractions together. You can see how things are spaced and aligned with each other. The third expression starts showing some of the real potential here. You will notice it is a complex fraction. It looks very good. Note the code below. It still does not take very much code to accomplish the fractions above. Nor is the code complex. It is actually very simple. Latex can do so much more just so you know. I just typed some random expression in my head and added some spacing. That is it. That is how you do fraction and should cover most of your needs. ### Using Square Roots Is Not Complicated You can do square roots in beginning latex as well. While not terribly exciting they are still important to know. In the first expression I just do a simple root. The second expression I show how you can be a bit more complicated and add a fraction under the root. For the third expression I show how to do a whole expression under the root. All these forms are useful. In the code below I demonstrate how to do square roots. Note the simple syntax. Just remember to keep everything spaced so you can see potential errors. If everything goes well you will be shooting out roots in no time. ### Typesetting Derivatives Making derivatives look nice is something you want to do too. It is quite easy also. You are just putting a fraction over a fraction. In beginning Latex you will use derivative notation heavily. This is how you can do derivatives. There are a myriad of ways to do them. There are different styles and display modes for everything mathematical. So this is just one way to accomplish it. The equations are again numbered. They are spaced out as well nicely. This is evident in the code. You can see at any time how to adjust your vertical spacing. In the code itself I am still using [amsmath] package. There are several more math packages. One day I will get to them all. I am just concentrating on the basics for this quick latex tutorial. ### Using Integrals Integrals are one of the most used equation forms out there. Look how much you can do. Here are example integrals. They are the opposite of derivatives in a way. The typesetting here in this beginning latex tutorial looks really good. Integrals are done flawlessly. Notice at bottom and top of the integral symbol you have the area where the calculation takes place. In the code window below you have the integration examples. This is just standard. It is meant to be combined with the other examples above or whatever your math needs are. This does not take complex code as you can see. For each type of math we do the code is always pretty simple. There is a lot to learn about Latex. You do not have to know everything though. The purpose of this beginning latex tutorial was to get you started. I also did things in such a way that you will learn quite a bit. The key to this is if you type out the code and get everything to work. I highly encourage you to do this if you need to learn latex. I placed many resources to learn from throughout the article. So if you have questions or want to learn something I did not cover then check one of those sites out. They are all good. Just read until you find what you are looking for. I will also be making a Latex tutorial PDF in the future for download. If you want to ask me any particular question then please use the comments section below. I will do my best. If you have found this article useful I would appreciate you subscribing to my email list and sharing it within your friends. ### Chapter 2 - Introduction Learning LaTeX typesetting does not have to be hard. While it can be very involved, there are really just a few basics. Today I will strive to help you with the fundamentals. If you need additional options after that they are easy to find. LaTeX can be very useful so lets get started. You may wonder why I am using Latex over something like Microsoft Word. The problem with Word is that it hides what is really going on in the background and it has far less capability than Latex. I use it when I want to display math or caluclus and it also helps me learn those topics better. The reason why is that you have to completely understand how the math works before you can properly display it in a document or a web site. That is my logic and I hope it is obvious to others. Besides, if you are in a computer, math, or physics discipline then you will need to learn this anyway. So today I want to talk about how to use LaTeX typesetting in your documents. ### Defining LaTeX Typesetting LaTeX is a tool for creating very refined looking documents. It is quite different than Microsoft Word. Fundamentally, you have a page of source code that is compiled by an editor. That sounds all fancy and complicated but it is not. Editors and online tools make this quite easy. ### Reasons To Learn It LaTeX is used everywhere in the world. It is mostly used by scientists and engineers. This is because it is the easiest way to portray their math and diagrams into a document. You can also extend its usage quite a bit by the use of packages. There types of packages for anything conceivable to write about. Others use LaTeX typesetting for writing documents. It gives ultimate control over spacing, fonts, and organization. Making document templates is a very popular way to use this typesetting tool. ### Your First Document If you are creating a document from scratch you will need to give it a [.tex] file extension through whatever editor you are using. A pure LaTeX editor and online sites will do this in the background for you. That is how you start a document and write a little text. I will show you how to do more with this in later sections. First, make sure you save it with the [.tex] extension. Then use your editor to compile this source. There should be an obvious button that says compile or build. The first line declares what kind of document you are using. An {article} is the most basic class. There are several other document classes as well. Everything else goes between the {document} tags. ### Modifying The Preamble In Latex Typesetting The preamble is the part of a document above the \begin{document} line. You can do a variety of things here. This is where you can specify font size and any special encoding. The font size can be set to whatever you prefer. The [utf8] encoding is pretty universal as well. There are many other packages and options you can use here. Titles, authors, and dates can easily be added to your document. This information goes in the preamble of your document. Use these commands in your preamble. Now you will also need to add another line in the body of your document. Add this right below \begin{document}. This line will enable the information you just added to your preamble to show up. These are very popular options to add with LaTeX typesetting. ### Commenting Your Code This is quite easy to do when using LaTeX typesetting. Add a % to any line will tell the compiler to not do anything with it. If you are following along in your own editor you will see that my commented line with a [%] does not show up in the document. It is for you. Use it to remind you of things and to tell yourself at a later date what your logic was. I know I have to do this or I will not remember why I did things. ### Formatting Your Text Well this is about LaTeX typesetting so talking about formatting had to come eventually. This is actually a huge topic on its own. For now I am just going to mention the basics to get you started. Later we can go more in depth together. • To make words bold you use the \textbf{ } command. • Italicizing is done with \textit{ }. • Underlining is done with \underline{ }. Let me show you some examples. ### Making Text Bold The preamble is the same as before. Just ignore the title for now as I did not update it. I used \textbf{fdisk-l} to make that bold. ### Using Italics Now to italicize you do something very similar. Try that in your editor. You will see that --create and --verbose are now italicized. ### Underlining Text To underline portions of your text you do the same thing. Notice how everything I underlined is enclosed with this bracket. This will have [@virtualization] underlined. ### Lists in LaTeX Typesetting Lists are easy and a good way to break up your content. They also get across a message well too. We will use a different environment for lists. We invoke it by using [\begin{itemize}. That sets up our environment. For each individual item or bulletpoint you will use [\item]. lets look at an example. This is an unordered list. It is just bulletpoints. You can see how easy that is. Note the beginning and ending of the [itemize] environment. We can do the same thing with to make an ordered list. These are sometimes helpful so we should know how to do them. We use a different environment for this too. It is the [enumerate] environment. You can see how the [enumerate] environment lets us order our list. ### Displaying Math In Latex Typesetting Here comes the really fun part of this! A lot of us have had to write about an algebra or calculus concept at one time or another. Do you remember the first time you opened up Word and tried to figure that out? So how long did it take you to get frustrated? Well LaTeX type setting has been around a lot longer than Word and other similar types of software. I am going to be writing about the display mode capabilities today just in case you are wondering. Lets start off in simple terms. Get it, terms, in math? Oh never mind. So here is basic Algebra. $y + 8 = 30$ This is some Calculus. $$E=mc^2$$ $$f(x)=3x^2+2x-5$$ These small equations are displayed by by enclosing them with $$before and after the equation. This is called the display mode in LaTex typesetting. ### Math Expressions Expressions are a fundamental part of equations. They are what make up equations to be precise. Something like:$$f'=3x^3+4x^2+9x-3$$. The code to display that is f'=3x^3+4x^2+9x-3. You can do most of algebra with that little bit of code. It will take care of simple expressions, logarithms and exponents. There are some nuances and other details that I will get into later. ### Parentheses In Latex These are every day items when doing math of any kind. In Latex typesetting you can control almost every aspect of how they look. So if I want to make an equation behave a certain way with parentheses it is easily done. Lets take this one for example and then I will break it down into smaller pieces.$$y=\left \{3x+6 \right \} + \left \{4x-2 \right \}$$To do this you will enclose your whole line in$$ ... $$You will use the \left and \right commands. After either \left or \right you add a space. So your whole will look like this:$$ \left \{ .......... \right \} $$The dots are where your expressions go. The size can also be controlled. You can do \big{ , \Big{ , \bigg{ , \Bigg{ instead of using \left and \right . The reason is that \left and \right use automatic sizing. Sometimes you may want your parentheses a different size and have to manually size them.$$y= \bigg \{4x-9 \bigg \}$$You can recreate this simple line by using y= \bigg \{4x-9 \bigg \} in your editor or file. ### Fraction In Latex Typesetting Simple fractions are used continually in math and calculus. Elementary school and collegiate courses both use them constantly. They take the form of \frac {}{}. The top number or letter goes in the first pair of parentheses. The bottom number or letter goes in the second pair. So lets do a simple problem. What is:$$ \frac{2}{3} + \frac{3}{4} = ? $$Of course the answer is to this problem is:$$ \frac{2}{3} + \frac{3}{4} \rightarrow \frac{17}{12} $$This is achieved with \frac{2}{3} + \frac{3}{4} \rightarrow \frac{17}{12}. Not too hard at all. ### Trigonometric Operators In Latex Once you get to Pre-Calculus in your schooling, trigonometry will be very common. Therefore, it is important to know how to display these operators properly when you are learning about them. The basic forms are \sin, \cos, \tan, \csc, \sec, and \cot. We can have problems like:$$ \cos \frac{5\pi}{6} = ? $$which is given by \cos \frac{5\pi}{6}.$$ \sin \frac{4\pi}{3} = ? $$which is done by \sin \frac{4\pi}{3}.$$ \tan \frac{3\pi}{4} = ? $$is displayed with \sin \frac{4\pi}{3}.$$ \sec \frac{2\pi}{4} = ? $$is given with this, \sec \frac{2\pi}{4}.$$ \csc \frac{3}{2\pi} = ? $$is done with the code \csc \frac{3}{2\pi}.$$ \cot \frac{11}{4\pi} = ? $$will be shown by the code cot \frac{11}{4\pi} . There are a lot more trigonometric functions but this should get you started for now. These are examples for all the basic types of functions. ### Integrals Using Typesetting Basic integrals will pop up in your first year of calculus. Therefore, it is vital you know how to handle them. This is where calculus starts getting fun. I will just put the code below the problem as usual. The basic integral form is this:$$ \int_{A}^{B} x^2 dx $$\int_{A}^{B} x^2 dx Another form of the integral looks like this:$$ \int 5x^2 +3x +9 dx $$\int 5x^2 +3x +9 dx Here is a slightly different form but basically the same.$$ \int 6x^3 - 4x^2 +7x -5 dx $$\int 6x^3 - 4x^2 +7x -5 dx This is a more complicated form of an integral.$$ \int (8x-12) (4x^2-4x)^4 dx\$

\int (8x-12) (4x^2-4x)^4 dx

Integrals can get really complicated. There is a lot more I could list here and talk about here. However, these are the basic forms and will be enough for first and maybe second year calculus.

Typesetting in Latex is like many other disciplines. It is fairly easy to get started but can take a very long time to master. Fortunately, it is rare that anyone really needs to master it. most of us, myself included, pick up what we need as we go.

It started with computer science and physics classes in school. That got me really interested in this and other topics. That is why it is so fun though. I was already interested in what I was doing and Latex was just an extension of those interests.

If you find similar interests and if any of them include typesetting documents for one reason or another then I hope this guide will be useful. I will be adding subsections continually as I am making this my official guide and reference to myself. Hope it helps!


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# I Vector addition and Newton's law

Tags:
1. Jun 1, 2018

### xaratustra

I know that n-body problem can be complicated, but that's for the dynamics. What about a static case:

e.g. if I have the distances of several bodies A, B and C etc. and their distance to a reference mass m, can I just use the vector addition of the Newton's gravitational force to add up all of the forces from all those bodies to the reference mass and obtain the resulting vector? or is it more complicated than that?

2. Jun 1, 2018

### ehild

If you want the net force on the reference body with mass m, just add all the gravitational forces vectorially. Yes, it is that simple. You need the position of all other bodies with respect to the reference body, as the forces of gravity depend on the difference vectors $\vec r_i-\vec r _0$.
The system is static if the net force at each body is zero (not only at the reference body).

Last edited: Jun 1, 2018
3. Jun 1, 2018

### sophiecentaur

It doesn't need to be harder to comprehend in principle but you end up with what's effectively a set of simultaneous non linear equations and it gets very complicated if you want to work out the paths of those bodies. Working out the resultant force on each body is only the start. Look at the wiki article on the three body problem (and that's only three.)


text:
Any reason ALT might not work?

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Using a windowed DirectX application, I can't get the ALT key to work. You're supposed to use the VK_MENU virtual key for Win32, right? Whenever I try to get something like ALT + T to do something it just results in an error beep. It just seems like the application isn't recognizing the ALT key. Is that normal for windowed applications because of Alt-Tab or something?

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In your WndProc function, you might be handling the WM_KEYDOWN message, but not handling WM_SYSKEYDOWN. The second one is what gets sent when the user is holding down Alt. (Docs).

The contents of the two messages are pretty much (maybe exactly?) the same, so in my switch block I just do this:

    case WM_KEYDOWN:    case WM_SYSKEYDOWN:        // etc.

Ditto for WM_SYSKEYUP.

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if what pinacolada said does not work, then you may need to replace the call to TranslateMessage() in your main loop with something else. See the docs for that API. This is not trivial because the alt key is intended to be used in combination with other keys, which sounds like what you want anyway. In that case, why not create an accelerator table and only call TranslateMessage() when TranslateAccelerator() returns false like the docs say?

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Quote:
 Original post by pinacoladaIn your WndProc function, you might be handling the WM_KEYDOWN message, but not handling WM_SYSKEYDOWN.

Nice, it works now.

One question though: Is it possible to stop it from making that noise whenever Alt is used with another key? Is that something caused by being windowed perhaps?

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• 13
• 11


text:
# Convexity of solutions of parabolic PDE

I consider the parabolic PDE of the form: $$\frac{\partial u}{\partial t} = a \frac{\partial^2 u}{\partial x^2} + b \frac{\partial u}{\partial x} + f(x) u,$$ where $$a, b$$ are constants. Initial condition is $$u(x, 0) = \phi(x)$$, where $$\phi(x)$$ is a convex function.

I wonder about the convexity of $$u(x, t)$$. I want to know what is the dependence between the form of the $$f(x)$$ and the convexity of $$u(x, t)$$. In other words I want to know if convexity is preserved for convex initial condition.

Can anyone recommend me some mathematical techniques that I can use in this type of problem.


text:
# Synopsis: Probing Chirality with Electron Vortices

Electron vortices can determine the chirality of crystals in high-resolution imaging techniques.

Chiral molecules, like our hands, come in two versions (“enantiomers”) with different handedness. Chirality can affect a molecule’s chemical behavior and is thus important in medicine and biology; for instance, only one of the two enantiomers of a drug molecule might bind to a targeted receptor. A new method, demonstrated by Jo Verbeeck and colleagues at the University of Antwerp, Belgium, could allow researchers to determine the chirality of crystalline samples using transmission electron microscopy (TEM). The scheme exploits so-called electron vortices, which have a “corkscrew” shape that makes them sensitive probes of a crystal’s handedness.

Electron vortices are beams of electrons that, thanks to their spiraling wave front, carry angular momentum. The authors modeled the pattern of diffracted electrons that are observed when a focused electron-vortex beam scatters from chiral crystals. Their analysis showed that left- and right-handed enantiomers generate patterns with different symmetries, providing a way to distinguish them. The technique also has an important advantage: it can determine the handedness of extremely thin samples, allowing the investigation of very small volumes of materials—potentially as small as a single molecule. The researchers demonstrated the technique experimentally by feeding an electron-vortex beam into a TEM and using it to analyze a chiral magnet (${\text{Mn}}_{2}{\text{Sb}}_{2}{\text{O}}_{7}$), showing their sample was of the right-handed variant. TEMs with chiral sensitivity might become useful in the analysis of biochemical drugs, in which chemicals can be active, inert, or even harmful, depending on their handedness.

This research is published in Physical Review B.

–Matteo Rini

More Features »

### Announcements

More Announcements »

## Previous Synopsis

Atomic and Molecular Physics

Optics

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Researchers have entangled six modes of a laser cavity—a record number for such a device. Read More »

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text:
# What should come in place of the question mark '?' in the following number series?510, ?, 210, 160, 135, 122.5

1. 315
2. 310
3. 290
4. 350
5. None of these

Option 2 : 310

## Detailed Solution

Calculation:

The series follows following pattern:

⇒ 510 – 200 = 310

⇒ 310 – 100 = 210

⇒ 210 – 50 = 160

⇒ 160 – 25 = 135

⇒ 135 – 12.5 = 122.5

∴ The value of ? is 310

Note: Difference is divided by 2


text:
experchange > vc.* #pragma comment( lib, ): may be a relative path?

 Angel Tsankov (03-04-06, 06:17 PM)
May I specify a relative or an absolute path in the pragma comment lib directive? If so, how?
 Carl Daniel [VC++ MVP] (03-04-06, 07:16 PM)
Angel Tsankov wrote:
> May I specify a relative or an absolute path in the pragma comment
> lib directive? If so, how?

No, just a file name. The linker will search the library paths (specified in
the environment or command line) to find the library.

-cd
 David Lowndes (03-04-06, 07:28 PM)
>May I specify a relative or an absolute path in the pragma comment lib directive? If so, how?

The MSDN documentation implies that you can. I've never tried it
myself though:

"
lib
Places a library-search record in the object file. This comment type
must be accompanied by a commentstring parameter containing the name
(and possibly the path) of the library that you want the linker to
search. The library name follows the default library-search records in
the object file; the linker searches for this library just as if you
had named it on the command line provided that the library is not
specified with /nodefaultlib. You can place multiple library-search
records in the same source file; each record appears in the object
file in the same order in which it is encountered in the source file.

If the order of the default library and an added library is important,
compiling with the /Zl switch will prevent the default library name
from being placed in the object module. A second comment pragma then
can be used to insert the name of the default library after the added
library. The libraries listed with these pragmas will appear in the
object module in the same order they are found in the source code.
"

Dave
 Angel Tsankov (03-04-06, 10:01 PM)
> The MSDN documentation implies that you can.

Yes, it does not say that it is impossible and that's why I asked how it is done.
 David Lowndes (03-05-06, 01:49 AM)
>Yes, it does not say that it is impossible and that's why I asked how it is done.

What have you tried, and what's been the result?

I've just tried this:

#pragma comment( lib, "c:\\rubbish\\user32.lib" )

and got this:

fatal error LNK1104: cannot open file 'c:\rubbish\user32.lib'

So it clearly does what it says to some degree!

Dave
 Angel Tsankov (03-05-06, 03:32 AM)
> >Yes, it does not say that it is impossible and that's why I asked how it is done.
> What have you tried, and what's been the result?
> I've just tried this:
> #pragma comment( lib, "c:\\rubbish\\user32.lib" )
> and got this:
> fatal error LNK1104: cannot open file 'c:\rubbish\user32.lib'
> So it clearly does what it says to some degree!

I tried with a relative path like this:

#pragma comment( lib, "dir/file.lib" )

and got the same error.
 David Lowndes (03-05-06, 12:21 PM)
>I tried with a relative path like this:
>#pragma comment( lib, "dir/file.lib" )
>and got the same error.

Right... so, where is file.lib in relation to other things?

What are you expecting it to do...?

Try a fixed path to exactly where your lib is and see if that works,
this does for me.

#pragma comment( lib, "C:\\Program Files\\Microsoft Visual Studio
8\\VC\\PlatformSDK\\Lib\\user32.lib" )

Dave
 Angel Tsankov (03-05-06, 04:22 PM)
> >I tried with a relative path like this:
> Right... so, where is file.lib in relation to other things?
> What are you expecting it to do...?
> Try a fixed path to exactly where your lib is and see if that works,
> this does for me.
> #pragma comment( lib, "C:\Program Files\Microsoft Visual Studio
> 8\VC\PlatformSDK\Lib\user32.lib" )

Yes, a fixed (absolute) path works for me, too.
Relative paths, however, do not work. I tried the following:

#pragma comment( lib, "/dir/file.lib" )
#pragma comment( lib, "\\dir\\file.lib" )
#pragma comment( lib, ".\\dir\\file.lib" )

in combination Library files in the IDE containg any of these paths:
d:\libraries\library_files
d:\libraries\library_files\
d:/libraries/library_files
d:/libraries/library_files/

The full path to the .lib file is
d:\libraries\library_files\dir\file.lib

Having tried all this, I tend to assume that it is not possible to specify a relative (i.e. an incomplete path) in a pragma comment
lib directive.
 David Lowndes (03-05-06, 05:10 PM)
>Yes, a fixed (absolute) path works for me, too.
>Relative paths, however, do not work. I tried the following:
>...
>Having tried all this, I tend to assume that it is not possible to specify a relative (i.e. an incomplete path) in a pragma comment
>lib directive.

As the documentation makes no specific reference to relative paths,
I'd have to conclude from the results you show that it's not catered
for.

Dave
 James Park (03-05-06, 06:01 PM)
"Angel Tsankov" <fn42551> wrote in message
news:6298
[..]
> d:\libraries\library_files\dir\file.lib
> Having tried all this, I tend to assume that it is not possible to specify
> a relative (i.e. an incomplete path) in a pragma comment lib directive.

I have no problems specifying paths relative to the source file.
 David Lowndes (03-06-06, 02:06 AM)
>> Having tried all this, I tend to assume that it is not possible to specify
>> a relative (i.e. an incomplete path) in a pragma comment lib directive.

>I have no problems specifying paths relative to the source file.

Perhaps you can give us an example that works for you James?

Dave
 James Park (03-06-06, 04:07 AM)
"David Lowndes" <DavidL> wrote in message
news:f45v
>>> Having tried all this, I tend to assume that it is not possible to
>>> specify
>>> a relative (i.e. an incomplete path) in a pragma comment lib directive.

>>I have no problems specifying paths relative to the source file.

> Perhaps you can give us an example that works for you James?

No problemo:

#include <windows.h>
#include <tchar.h>

#pragma comment( lib, "..\\..\\..\\..\\..\\..\\..\\Program Files\\Microsoft
Visual Studio 8\\VC\\PlatformSDK\\Lib\\user32.lib" )

int _tmain(int argc, _TCHAR* argv[])
{
UNREFERENCED_PARAMETER(argc);
UNREFERENCED_PARAMETER(argv);
FindWindow(NULL, NULL);
}
 Carl Daniel [VC++ MVP] (03-06-06, 07:51 AM)
James Park wrote:
> "David Lowndes" <DavidL> wrote in message
> news:f45v
> No problemo:
> #include <windows.h>
> #include <tchar.h>
> #pragma comment( lib, "..\..\..\..\..\..\..\Program
> Files\Microsoft Visual Studio 8\VC\PlatformSDK\Lib\user32.lib" )

.... which would have worked even if the linker ignored the path completely.
Have you tried a .lib that's in a directory that's not on the lib path? (I
haven't).

-cd
 James Park (03-06-06, 08:22 AM)
"Carl Daniel [VC++ MVP]" <cpdaniel_remove_this_and_nospam>
wrote in message news:a164
> James Park wrote:
> ... which would have worked even if the linker ignored the path
> completely. Have you tried a .lib that's in a directory that's not on the
> lib path? (I haven't).

I've tried using a bad path (removed one "..\\") and that didn't build. I've
also tried copying user32.lib to the directory one level above and using
"..\\user32.lib" and that built fine too.
 Carl Daniel [VC++ MVP] (03-06-06, 09:19 AM)
James Park wrote:
> "Carl Daniel [VC++ MVP]"
> I've tried using a bad path (removed one "..\") and that didn't
> build. I've also tried copying user32.lib to the directory one level
> above and using "..\user32.lib" and that built fine too.

Sounds like it works then :)

In your test, was the .obj file in the same directory as the source file?
It would seem odd that a path relative to the source file would be


text:
# Differential Forms

## Homework Statement

Let $$x_1,...,x_n: M \rightarrow R$$ be functions on a manifold which form a local coordinate system on some region. Show that every differential form on this region can be written uniquely in the form

$$w^k = \sum_{i_1<...<i_k} a_{i_1,...i_k}(\bf{x})dx_{1_i} \wedge .. \wedge dx_{1_k}$$

Any ideas?

## The Attempt at a Solution

Suppose you are in 3 dimensions. How would you write $d_{x_1}d_{x_3}$ in that form?


text:
Lemma 26.11.7. Let $X$ be a scheme. Let $\mathcal{B}$ be the set of affine opens of $X$. Let $\mathcal{F}$ be a presheaf of sets on $\mathcal{B}$, see Sheaves, Definition 6.30.1. The following are equivalent

1. $\mathcal{F}$ is the restriction of a sheaf on $X$ to $\mathcal{B}$,

2. $\mathcal{F}$ is a sheaf on $\mathcal{B}$, and

3. $\mathcal{F}(\emptyset )$ is a singleton and whenever $U = V \cup W$ with $U, V, W \in \mathcal{B}$ and $V, W \subset U$ standard open (Algebra, Definition 10.17.3) the map

$\mathcal{F}(U) \longrightarrow \mathcal{F}(V) \times \mathcal{F}(W)$

is injective with image the set of pairs $(s, t)$ such that $s|_{V \cap W} = t|_{V \cap W}$.

Proof. The equivalence of (1) and (2) is Sheaves, Lemma 6.30.7. It is clear that (2) implies (3). Hence it suffices to prove that (3) implies (2). By Sheaves, Lemma 6.30.4 and Lemma 26.5.1 it suffices to prove the sheaf condition holds for standard open coverings (Definition 26.5.2) of elements of $\mathcal{B}$. Let $U = U_1 \cup \ldots \cup U_ n$ be a standard open covering with $U \subset X$ affine open. We will prove the sheaf condition for this covering by induction on $n$. If $n = 0$, then $U$ is empty and we get the sheaf condition by assumption. If $n = 1$, then there is nothing to prove. If $n = 2$, then this is assumption (3). If $n > 2$, then we write $U_ i = D(f_ i)$ for $f_ i \in A = \mathcal{O}_ X(U)$. Suppose that $s_ i \in \mathcal{F}(U_ i)$ are sections such that $s_ i|_{U_ i \cap U_ j} = s_ j|_{U_ i \cap U_ j}$ for all $1 \leq i < j \leq n$. Since $U = U_1 \cup \ldots \cup U_ n$ we have $1 = \sum _{i = 1, \ldots , n} a_ i f_ i$ in $A$ for some $a_ i \in A$, see Algebra, Lemma 10.17.2. Set $g = \sum _{i = 1, \ldots , n - 1} a_ if_ i$. Then $U = D(g) \cup D(f_ n)$. Observe that $D(g) = D(gf_1) \cup \ldots \cup D(gf_{n - 1})$ is a standard open covering. By induction there is a unique section $s' \in \mathcal{F}(D(g))$ which agrees with $s_ i|_{D(gfi)}$ for $i = 1, \ldots , n - 1$. We claim that $s'$ and $s_ n$ have the same restriction to $D(gf_ n)$. This is true by induction and the covering $D(gf_ n) = D(gf_ nf_1) \cup \ldots \cup D(gf_ nf_{n - 1})$. Thus there is a unique section $s \in \mathcal{F}(U)$ whose restriction to $D(g)$ is $s'$ and whose restriction to $D(f_ n)$ is $s_ n$. We omit the verification that $s$ restricts to $s_ i$ on $D(f_ i)$ for $i = 1, \ldots , n - 1$ and we omit the verification that $s$ is unique. $\square$

In your comment you can use Markdown and LaTeX style mathematics (enclose it like $\pi$). A preview option is available if you wish to see how it works out (just click on the eye in the toolbar).


text:
## College Algebra (11th Edition)

Published by Pearson

# Chapter 4 - Review Exercises - Page 469: 65

#### Answer

$x=-3$

#### Work Step by Step

$\bf{\text{Solution Outline:}}$ To solve the given equation, $\ln[\ln(e^{-x})]=\ln3 ,$ drop the $\ln$ on both sides. Then use the properties of logartihms to simplify the result. Use the properties of equality to isolate the variable. $\bf{\text{Solution Details:}}$ Since both sides have the same logarithmic base, then the logarithm can be droppped. Hence, the equation above is equivalent to \begin{array}{l}\require{cancel} \ln(e^{-x})=3 .\end{array} Using the Power Rule of Logarithms, which is given by $\log_b x^y=y\log_bx,$ the equation above is equivalent \begin{array}{l}\require{cancel} -x\ln e=3 .\end{array} Since $\ln e=1,$ the equation above is equivalent to \begin{array}{l}\require{cancel} -x(1)=3 \\\\ -x=3 \\\\ x=-3 .\end{array}

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.


text:
MATLAB TUTORIAL, part 2.1: Positive Matrices

Positive Matrices
A square real matrix A is called positive-definite if all its eigenvalues are positive. In other words, if
${\bf x}^{\mathrm T} \,{\bf A} \, {\bf x} >0$
for all nonzero real vectors x, and $${\bf x}^{\ast} = {\bf x}^{\mathrm T}$$ denotes the transposed vector. Correspondingly, a square matrix is called positive-semidefinite if all its eigenvalues are nonnegative:
${\bf x}^{\ast} \,{\bf A} \, {\bf x} \ge 0 .$
A square matrix A is called positive if all its entries are positive numbers. In particular, all Markov matrices are positive.

The determinant of a positive definite matrix is always positive, so a positive definite matrix is always nonsingular (invertible). A positive definite matrix has at least one matrix square root. Furthermore, exactly one of its matrix square roots is itself positive definite. A real symmetric matrix A is positive definite iff there exists a real nonsingular matrix M such that

${\bf A} = {\bf M}\, {\bf M}^{\mathrm T} .$
Powers of square matrices will be denoted by exponents in the same manner as for scalars. For example, the square of a matrix A will be called $${\bf A}^2 = {\bf A}\, {\bf A} ,$$ and it is equal to A times A. In a similar way, higher powers are defines as
${\bf A}^n = {\bf A}\, {\bf A} \cdots {\bf A} = {\bf A}\, {\bf A}^{n-1} ,$
where the matrix A appears n times in the product on the right-hand side. The zero power of a square matrix is defined as the identity matrix, except when the matrix is null:
${\bf A}^0 = {\bf I} ,$
where I is the identity matrix.

Complete


text:
# What is the average drift speed of conduction electrons in a copper wire of cross-sectional area $1.0 \times 10^{–7}m^2$ carrying a current of $1.5 A$. Assume that each copper atom contributes roughly one conduction electron. The density of copper is $9.0 \times 10^3 kg/m^3$ , and its atomic mass is $63.5 u.$
$\begin {array} {1 1} (A)\;1.9mm/s & \quad (b)\;1.1 mm/s \\ (C)\;2.9 mm/s & \quad (D)\;2.2 mm/s \end {array}$


text:
<< problem 7 - 10001st prime Special Pythagorean triplet - problem 9 >>

# Problem 8: Largest product in a series

The four adjacent digits in the 1000-digit number that have the greatest product are 9 * 9 * 8 * 9 = 5832.

73167176531330624919225119674426574742355349194934
96983520312774506326239578318016984801869478851843
85861560789112949495459501737958331952853208805511
12540698747158523863050715693290963295227443043557
66896648950445244523161731856403098711121722383113
62229893423380308135336276614282806444486645238749
30358907296290491560440772390713810515859307960866
70172427121883998797908792274921901699720888093776
65727333001053367881220235421809751254540594752243
52584907711670556013604839586446706324415722155397
53697817977846174064955149290862569321978468622482
83972241375657056057490261407972968652414535100474
82166370484403199890008895243450658541227588666881
16427171479924442928230863465674813919123162824586
17866458359124566529476545682848912883142607690042
24219022671055626321111109370544217506941658960408
07198403850962455444362981230987879927244284909188
84580156166097919133875499200524063689912560717606
05886116467109405077541002256983155200055935729725
71636269561882670428252483600823257530420752963450

Find the thirteen adjacent digits in the 1000-digit number that have the greatest product.
What is the value of this product?

# My Algorithm

Starting at each position where at least 13 digits (variable span) can be found,
a loop goes through those 13 digits and:
1. convert each digit from ASCII to numeric: numeric = ascii - '0'
2. multiply all those converted digits
3. if product is higher than before: keep it

## Alternative Approaches

If span is large, then an incremental approach might be useful:
instead of multiplying all digits over and over again, we re-use a large portion of last iteration's product.
Let's pretend our sequences contains just 4 elements:
product_0=x_0*x_1*x_2*x_3
then
product_1=x_1*x_2*x_3*x_4=product_0*x_4/x_0

This reduces O-complexity from O(mn) to O(n).

# Interactive test

You can submit your own input to my program and it will be instantly processed at my server:

Number of test cases (1-5):

Input data (separated by spaces or newlines):

This is equivalent to
echo "1 1000 4 7316717653133062491922511967442657474235534919493496983520312774506326239578318016984801869478851843858615607891129494954595017379583319528532088055111254069874715852386305071569329096329522744304355766896648950445244523161731856403098711121722383113622298934233803081353362766142828064444866452387493035890729629049156044077239071381051585930796086670172427121883998797908792274921901699720888093776657273330010533678812202354218097512545405947522435258490771167055601360483958644670632441572215539753697817977846174064955149290862569321978468622482839722413756570560574902614079729686524145351004748216637048440319989000889524345065854122758866688116427171479924442928230863465674813919123162824586178664583591245665294765456828489128831426076900422421902267105562632111110937054421750694165896040807198403850962455444362981230987879927244284909188845801561660979191338754992005240636899125607176060588611646710940507754100225698315520005593572972571636269561882670428252483600823257530420752963450" | ./8

Output:

(this interactive test is still under development, computations will be aborted after one second)

# My code

… was written in C++ and can be compiled with G++, Clang++, Visual C++. You can download it, too. Or just jump to my GitHub repository.

       #include <iostream>
#include <string>

int main()
{
unsigned int tests;
std::cin >> tests;
while (tests--)
{
// length of string
unsigned int length;
// number of relevant consecutive digits
unsigned int span;
// read number as a string
std::string number;
std::cin >> length >> span >> number;

// results can be much bigger than 32 bits ... but 64 bits are enough, though
unsigned long long best = 0;
// loop ends when there are less than "span" digits left
for (int start = 0; start + span < length; start++)
{
unsigned long long current = 1;
// convert digits from ASCII to numbers and multiply
for (unsigned int i = 0; i < span; i++)
current *= number[start + i] - '0';

// better than before ?
if (best < current)
best = current;
}

std::cout << best << std::endl;
}
return 0;
}

In order to run my code, execute
echo "1 1000 13 7316717653133062491922511967442657474235534919493496983520312774506326239578318016984801869478851843858615607891129494954595017379583319528532088055111254069874715852386305071569329096329522744304355766896648950445244523161731856403098711121722383113622298934233803081353362766142828064444866452387493035890729629049156044077239071381051585930796086670172427121883998797908792274921901699720888093776657273330010533678812202354218097512545405947522435258490771167055601360483958644670632441572215539753697817977846174064955149290862569321978468622482839722413756570560574902614079729686524145351004748216637048440319989000889524345065854122758866688116427171479924442928230863465674813919123162824586178664583591245665294765456828489128831426076900422421902267105562632111110937054421750694165896040807198403850962455444362981230987879927244284909188845801561660979191338754992005240636899125607176060588611646710940507754100225698315520005593572972571636269561882670428252483600823257530420752963450" | ./euler-0008

(input format usually follows Hackerrank's requirements)

This solution contains 4 empty lines, 7 comments and 2 preprocessor commands.

# Benchmark

The correct solution to the original Project Euler problem was found in less than 0.01 seconds on an Intel® Core™ i7-2600K CPU @ 3.40GHz.
(compiled for x86_64 / Linux, GCC flags: -O3 -march=native -fno-exceptions -fno-rtti -std=gnu++11 -DORIGINAL)

See here for a comparison of all solutions.

Note: interactive tests run on a weaker (=slower) computer. Some interactive tests are compiled without -DORIGINAL.

# Changelog

February 23, 2017 submitted solution

# Hackerrank

My code solves 10 out of 10 test cases (score: 100%)

# Difficulty

Project Euler ranks this problem at 5% (out of 100%).

Hackerrank describes this problem as easy.

Note:
Hackerrank has strict execution time limits (typically 2 seconds for C++ code) and often a much wider input range than the original problem.
In my opinion, Hackerrank's modified problems are usually a lot harder to solve. As a rule thumb: brute-force is rarely an option.

# Heatmap

Please click on a problem's number to open my solution to that problem:

 green solutions solve the original Project Euler problem and have a perfect score of 100% at Hackerrank, too yellow solutions score less than 100% at Hackerrank (but still solve the original problem easily) gray problems are already solved but I haven't published my solution yet blue solutions are relevant for Project Euler only: there wasn't a Hackerrank version of it (at the time I solved it) or it differed too much orange problems are solved but exceed the time limit of one minute or the memory limit of 256 MByte red problems are not solved yet but I wrote a simulation to approximate the result or verified at least the given example - usually I sketched a few ideas, too black problems are solved but access to the solution is blocked for a few days until the next problem is published [new] the flashing problem is the one I solved most recently

I stopped working on Project Euler problems around the time they released 617.
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The 310 solved problems (that's level 12) had an average difficulty of 32.6% at Project Euler and
I scored 13526 points (out of 15700 possible points, top rank was 17 out of ≈60000 in August 2017) at Hackerrank's Project Euler+.

My username at Project Euler is stephanbrumme while it's stbrumme at Hackerrank.

Look at my progress and performance pages to get more details.

 << problem 7 - 10001st prime Special Pythagorean triplet - problem 9 >>
more about me can be found on my homepage, especially in my coding blog.
some names mentioned on this site may be trademarks of their respective owners.
thanks to the KaTeX team for their great typesetting library !


text:
# TabView Alignment problem for content larger than a view area

Bug introduced in 10 or earlier and persisting through 11.0.0

When content is larger than ImageSize of TabView then the top edge is cut off even with Alignment->{Left,Top}.

SetterBar[Dynamic@horizontalAlignment, {Left, Right}]
SetterBar[Dynamic@verticalAlignment, {Bottom, Top}]

TabView[{
1 -> Framed[RandomImage[1, {100, 100}, ImageSize -> 200], FrameStyle -> Red]
},
ImageSize -> {90, 90} ,
Alignment -> Dynamic@{horizontalAlignment, verticalAlignment}]

I expect that the red frame edge should be visible. The only one setting which is respected is Left.

Is this OS specific?

related: 44690

Tested on Win7 V10.0.2

• Same with my v10.0.2 & v9.0.1 on OSX 10.9.5. – SquareOne Mar 4 '15 at 9:44
• Actually, it seems to concern only the contents which have been defined with the option ImageSize. When this option is missing, the image in TabView is not clipped but rescaled to be fully visible. For example, try instead : {1 -> Framed[RandomImage[1, {200, 200}], FrameStyle -> Red]}. Or am I missing something ? – SquareOne Mar 4 '15 at 14:37
• Yes it was clear to me that we are not talking about contents like Grid but like images or graphics. Once again, in my example : {1 -> Framed[RandomImage[1, {200, 200}], FrameStyle -> Red]}, the random image is 200x200, it is larger than the display area 90x90, but it is not clipped but scaled down to fit the display. I am just saying that TabView behaves differently whether graphics content were defined with ImageSize or not. It is complementary to your observations. – SquareOne Mar 4 '15 at 15:13
• Observe also the difference between : 1 -> RandomImage[1, {200, 200}] and 1 -> Show@RandomImage[1, {200, 200}]. The first is an Image, the second is a Graphics, both have 200x200 but display differently in TabView. – SquareOne Mar 4 '15 at 15:15
• @SquareOne Sorry, I missed your point. Yes you are right, the behaviour is different. But I can live with this, unless I set options explicitly I can't expect it will always fit my expectation. My question is about unexpected results when options are not leaving any interpretation to MMA. It is just a bug, imo. – Kuba Mar 4 '15 at 22:18

Quick fix is to use

Pane[#, ImageMargins -> {{0, 10}, {5, 5}}] &

on tabs contents.

Not convenient but working. Probably also OS dependent solution...

To not copy this I'm using a function which can be used directly on TabView:

tabViewFix1 = Function[tabView,
MapAt[
Pane[#, ImageMargins -> {{0, 10}, {5, 5}}] &,
tabView,
{1, All, 2}
]
]

### Edit: WRI confirmed it is misbehaving:

[...] It does appear that the Alignment option in TabView is not behaving properly in this case and I have forwarded an incident report to our developers with the information you provided. In the meantime, depending on your program, it may be possible for you to use the option ImageMargins to make the margins bigger, this seems to allow the frame to become visible in all alignment scenarios. The ImageMargins option can be used as in the following example:

SetterBar[Dynamic@horizontalAlignment,{Left,Right}]
SetterBar[Dynamic@verticalAlignment,{Bottom,Top}]
TabView[{1->Framed[RandomImage[1,{100,100},ImageSize->200],FrameStyle->Red, ImageMargins->7]},ImageSize->{90,90},Alignment->Dynamic@{horizontalAlignment,verticalAlignment}]

• The ImageMargins workaround works for me also if I use it directly in Framed, and according to my tests these margins needs to be >= 6. For example : Framed[RandomImage[1, {100, 100}, ImageSize -> 200], ImageMargins -> 6, FrameStyle -> Red] – SquareOne Mar 4 '15 at 9:49
• @SquareOne sure, the problem is that the content can be arbitrary and will be cut off. I used Framed to show the issue. I mean, not everything has ImageMargins option. – Kuba Mar 4 '15 at 9:50
• Allright, it did not understand the problem was the cut off of the content. Instead of a RandomImage, maybe you should take some image with one (red) pixel border frame to show the cut off ? – SquareOne Mar 4 '15 at 9:56
• @SquareOne I added a short explanation at the top of the question. Is this ok or do you insist on different example? – Kuba Mar 4 '15 at 10:04


text:
# 1 Installation and Code Examples

To run all code examples in this book successfully, install the mlr3book package using the remotes package:

remotes::install_github("mlr-org/mlr3book", dependencies = TRUE)

After the installation, load the mlr3 package and you are good to go:

library(mlr3)


text:
# If a sum is 0, is the summand 0?

1. Nov 30, 2014

Hey guys,

Was just wondering something. Suppose I have an equation of the form

$\sum_{i=0}^{n}\frac{1}{x_{i}}(a-by_{i})=0$,

how would I solve this? do I just set the summand = 0?

2. Nov 30, 2014

### Staff: Mentor

No. If the terms in the sum can be positive or negative, their sum can be zero without any of them being zero. As a simple example, 2 + (-1) + (-1) = 0, but no single term equals zero.

Last edited: Nov 30, 2014
3. Nov 30, 2014

### Stephen Tashi

What variables are you solving for? What symbols represent known values ?

4. Nov 30, 2014

The real equation I'm dealing with is
$\sum_{i=1}^{n}\frac{1}{\sigma_{i}^{2}}2x(y_{i}-\alpha x -\beta x^{2})=0$

and im trying to solve for alpha and beta but one at a time...

5. Nov 30, 2014

### Stephen Tashi

So it's "$x$" instead of "$x_i$"?`

6. Nov 30, 2014

Yes I wrote it completely differently in the original post as I didnt think I would need to put the actual equation here but I changed my mind, sorry.

There is no summation over $x$, only over the $\sigma_{i}$ and $y_{i}$.

7. Nov 30, 2014

The closest I can get is

$(\alpha x +\beta x^{2})\sum_{i=1}^{n}\frac{1}{\sigma_{i}^{2}}=\sum_{i=1}^{n}\frac{y_{i}}{\sigma_{i}^{2}}$

No idea what to do from here

8. Dec 1, 2014

### Stephen Tashi

That equation doesn't have a unique solution. To get a unique solution, you need to know another equation involving $\alpha$ and $\beta$.

Does this equation come from setting a partial derivative equal to zero? If so, perhaps there is another partial derivative that's supposed to be set equal to zero.

9. Dec 1, 2014

Yes you are right - it turns out that the $x$ are also summed in addition to $y_{i},\sigma_{i}$, i had interpreted the situation inocorrectly.