Ka taƙaita labarin:  (CNN) Ranar Pi za ta kasance ta musamman a wannan shekara, kamar yadda 2015 ke shimfiɗa bikin ranar 14 ga Maris na alama har zuwa 3.1415. Kuma idan ka sanya pi a karfe 9:26.53 na safe ko na dare, ka yi daidai da lambar da ba ta da iyaka. Don 31 wurare na goma, pi shine 3.1415926535897932384626433832795. Wasu karin bayani game da pi da ranar Pi: Game da pi. Pi shine rabo na kewayon da'irar zuwa diamita. Ba daidai yake da rabo na kowane lambobi biyu ba, don haka ana amfani da kusancin - 22/7 - a lissafi da yawa. Pi yana da mahimmanci a gine-gine da kuma gine-gine kuma an yi amfani dashi sau da yawa ta hanyar astronomers na farko. An san Pi na kimanin shekaru 4,000, amma an fara kiransa da harafin Girka ne kawai a cikin 1700s. Asalin ranar Pi. Ranar Pi ta fara ne shekaru 27 da suka gabata a San Francisco's Exploratorium. Masanin kimiyyar lissafi Larry Shaw, wanda ya yi aiki a rukunin lantarki a gidan kayan gargajiya, ya fara bikin pi a ranar 14 ga Maris, 1988, da farko tare da ma'aikatan gidan kayan gargajiya. Al'adar ta girma don rungumar masu sha'awar lissafi daga kowane bangare na rayuwa. Bikin biki. A wannan shekara, Exploratorium yana karbar bakuncin bikin kwana guda a cibiyarsa a Pier 15, gami da Pi Procession, rabo na kek da taron pizza-pie-tossing. Ranar Pi ita ce ranar haihuwar Albert Einstein. A Princeton, New Jersey, inda Einstein ya yi rayuwa fiye da shekaru ashirin, alamun masanin kimiyya sun cika bikin ranar Pi, daga bukukuwan ranar haihuwa a Ƙungiyar Tarihi ta Princeton zuwa gasar kamannin Einstein. Ƙari ga abin da ake buƙata na cin kek, jefa kek da kuma ƙirƙirar pizza. Don ƙarin bayani game da pi, ziyarci www.piday.org. Wakilin CNN Elizabeth Landau ya ba da gudummawa ga wannan rahoto.
An yi bikin ranar Pi ranar 14 ga Maris don girmama lambar da ba ta dace ba. San Francisco's Exploratorium da kuma Princeton, New Jersey, duk sun fita.