Re: How does human find the value of "pi"?

**Mr Lee** · **Mr Lee** on Thu Mar 20, 2008 11:08 pm

not my fault wrote:pi is also 22 over 7(22/7)

pi is not 22/7; 22/7 is a good approximation of pi.

pi is circumference divided by diameter, but is has infinitely many digits.

Yes, for practical purposes, we round it off to 3.14.

How can we find pi up to 200 digits? And how useful is it?

**ambigram monkey** · **ambigram monkey** on Sun Apr 06, 2008 9:33 pm

Mr Lee wrote:
not my fault wrote:pi is also 22 over 7(22/7)

pi is not 22/7; 22/7 is a good approximation of pi.

pi is circumference divided by diameter, but is has infinitely many digits.

Yes, for practical purposes, we round it off to 3.14.

How can we find pi up to 200 digits? And how useful is it?

the more digits we use the more accuracy

**ambigram monkey** · **ambigram monkey** on Fri Apr 11, 2008 11:35 pm

pi is mentioned in the bible:alien: alien

**pan fried egg** · **pan fried egg** on Sat Apr 12, 2008 6:54 pm

can you tell us the detail?

**ambigram monkey** · **ambigram monkey** on Mon Apr 14, 2008 10:41 pm

~Moment of glory~ wrote:i think humans find 100 digits for pi

they get 100265 decimal places

**ambigram monkey** · **ambigram monkey** on Fri Apr 25, 2008 11:59 pm

cube monkey wrote:pi is mentioned in the bible:alien:

Chronicle2 The Jews said that Pi is 3

**ambigram monkey** · **ambigram monkey** on Sat Apr 26, 2008 12:02 am

not my fault wrote:oh no, pi is such a difficult term to understand

Carson, PI can be equivelant to one thing

PI=PI

**ambigram monkey** · **ambigram monkey** on Sun Jul 20, 2008 3:52 pm

1.pi=lim perimeter(N-gon)
n

infinity

2.pi=4*arctan(1/2)+arctan1/8+arctan(1/5)........
3.pi=2*2/squroot(2)*2/squroot(2+Squroot(2))......
4.pi/2=2*2/1.3*4*4/3*5*6*6/5*7.....................
5.pi^2/6=infinity
summation1/n^2
n=1