祖沖之生于429年死于500年,南北朝時(shí)代南朝數(shù)學(xué)家、天文學(xué)家.字文遠(yuǎn).（今河北）人.祖沖之在前人推算圓周率的基礎(chǔ)上,利用割圓術(shù)的方法繼續(xù)推算,得出圓周率值在3.1415926和1415927之間.
The ancestor flushes it to be born dies in 429 years in 500 years,the Southern and Northern Dynasties time Southern Dynasty mathematician,the astronomer.Character Wen Yuan.(Now Hebei) person.The ancestor flushes it in the predecessor to calculate the girth quotient in the foundation,the use shears the round technique the method to continue to calculate,obtains the girth quotient value between 3.1415926 and 1415927