A silly approximation of the number PI The number PI is 3,141592.... You may note that an integer devided by 99 gives an interesting row. If you devide 77 you get 0,77777777... So I thought, what to devide by 99, such that I get 3,14141414... The anwer is of course 99 x 3,14141414... = 310,9999999..... Which equals 311 So Pi can be approximated by 311 / 99 = 3,1414 If you calculate this in Excel: =PI()/311/99 you will find the error is only 0,01% |