I'm not talking about 22/7, but the actual answer for pi.
2006-09-05 13:58:38 · 4 answers · asked by thnbgr1 1 in Science & Mathematics ➔ Mathematics
Go here;http://www.geocities.com/CapeCanaveral/Hall/2449/historyofpi.htm
2006-09-05 14:02:05 · answer #1 · answered by Anonymous · 0⤊ 0⤋
pi = 4 times the sum of all (-1)^k/(2k+1) with k is 0, 1, 2, ..., infinity = 4*(1-1/3+1/5-1/7+1/9-1/11...)
You have to add a lot of numbers before you get close to the reall value of pi.
2006-09-05 21:07:30 · answer #2 · answered by Anonymous · 0⤊ 0⤋
Nowadays they use an very rapidly converging iteration. You calculate pi to (say) 10 places, plug the answer back into the formula, and it comes out correct to 40 places. Then do it again ... and again ... that's how you get to 40 billion places or whatever they have done by now.
2006-09-06 08:02:52 · answer #3 · answered by bh8153 7 · 0⤊ 0⤋
The measure the circumference of a circle. They measure the diameter of the same circle. They divide the Circumference by the diameter. The answer is 3 and a continuing fraction. It has been calculated to millions of parts.
;-D I like Apple Pie!
2006-09-05 21:05:43 · answer #4 · answered by China Jon 6 · 0⤊ 0⤋