Rangarira ndima iri pasi apa uye ipapo pindura mubvunzo gare gare mumutauro mumwe chetewo sechikamu:  Kupfuura: MuChina chekare, kukosha kwepi kwaisanganisira 3.1547 (munenge muna 1 AD), √10 (100 AD, munenge muna 3.1623), uye 142/45 (zana remakore rechitatu, munenge muna 3.1556). Munenge muna 265 AD, nyanzvi yemasvomhu yeUmambo hweWei Liu Hui akagadzira polygon-based iterative algorithm ndokuiishandisa nepolygon ine mativi 3,072 kuti awane kukosha kwepi ye3.1416. Liu akazowana nzira inokurumidza yokuverenga nayo π ndokuwana ukoshi hwe3,14 nepolygon ine mativi 96, nokushandisa zvakanaka chokwadi chokuti misiyano iri munharaunda yemapolygon anotevedzana inoumba nhevedzano yejometri ine chikamu che 4. Nyanzvi yemasvomhu yekuChina Zu Chongzhi, munenge muna 480 AD, akaverenga kuti 3.1415926 < π < 3.1415627 ndokubva ataura kuti π ≈ 355/113 = 3.14159292035... uye π ≈ 22/7 = 3.142857142857..., iyo yaakatumidza kuti Milü (''close ratio') uye Yuelü ("approximate ratio"), zvichitevedzana, achishandisa Liu Hui's algorithm yakashandiswa kune 12,288-sided polygon. Nemutengo wakarurama nokuda kwamadhigirii ayo manomwe okutanga gumi, uyu mutengo wepi wakaramba uri kuenzanisa kwakarurama kwepi kunowanika kwemakore 800 anotevera. Nyanzvi yezvomuchadenga yeIndia Aryabhata yakashandisa ukoshi hwe 3.1416 muAryabhaṭīya yake (499 AD). Fibonacci muna c. 1220 yakaverenga 3.1418 ichishandisa nzira ine mativi akawanda, yakazvimirira naArchimedes. Munyori weItaly Dante sezviri pachena akashandisa ukoshi 3+√2/10 ≈ 3.14142. Muongorori wezvomuchadenga wePersia Jamshīd al-Kāshī akabudisa 9 sexagesimal digits, inenge yakaenzana ne16 decimal digits, muna 1424 achishandisa polygon ine 3×228 mativi, ayo akamira sechinyorwa chenyika kwemakore anenge 180. Nyanzvi yemasvomhu yokuFrance François Viète muna 1579 yakawana manhamba mapfumbamwe ane mativi 3 × 217. Nyanzvi yemasvomhu yeFlemish Adriaan van Roomen yakasvika kunzvimbo 15 dzegumi muna 1593. Muna 1596, nyanzvi yemasvomhu yokuNetherlands yainzi Ludolph van Ceulen yakasvika pamadhigirii 20, nhamba yaakazowedzera kuti isvike pamadhigirii 35 (nokudaro, π yainzi "nhamba yaLudolphi" muGermany kusvikira pakutanga kwezana remakore rechi20). Musayendisiti wokuNetherlands Willebrord Snellius akasvika pamadhijiti 34 muna 1621, uye nyanzvi yokuAustria yezvenyeredzi Christoph Grienberger akasvika pamadhijiti 38 muna 1630 achishandisa mativi 1040, iyo inoramba iri...  Mubvunzo: Viète akawana manhamba mangani achishandisa polygon ine nhamba yakanyanyisa yemativi?
Makumi mapfumbamwe