摘要：
数学知识忘地太快，在博客记录一下pi的生成。100 Decimal places3.1415926535897932384626433832795028841971693993751058209749445923078164062862089986280348253421170679Approximations22/7 3 decimal places (used by Egyptians around 1000BC)666/212 4 decimal places355/113 6 decimal places104348/33215 8 decimal placesSeries Expan 阅读全文