How to calculate Pi to 1,000,000 places in your head .

[neptune]

I used to be impressed when mathematical geniuses mentally calculated the value of Pi to a large number of decimal places in their heads .Then I spotted the trick .Pi= 22 divided by 7 = 3.142857 . If you continue to divide , the numbers after the decimal point just keep repeating . So Pi= 3.142857142857142857142857142857 and so on ad infinitum . Easy isnt it ?

[rensseak]

I used to be impressed when mathematical geniuses mentally calculated the value of Pi to a large number of decimal places in their heads .Then I spotted the trick .Pi= 22 divided by 7 = 3.142857 . If you continue to divide , the numbers after the decimal point just keep repeating . So Pi= 3.142857142857142857142857142857 and so on ad infinitum . Easy isnt it ?

pi=3,14159265358979323846.......

you know, there is no repeating in pi

[neptune]

Hi Rensseak .I was always taught that Pi is 22 divided by 7 . If this is true , I stand by my answer which was calculated by long division not using a calculator . I would be very interested in your answer .Are you saying that Pi is not 22 divided by 7 ? Update . I just Googled Pi . You are correct . Pi is not exactly equal to 22/7 .You wait until I see my old maths teacher....

[e2matrix]

Yep 22/7 is just an easy way to remember the rough value of pi.  One of the unique things about pi has always been that even calculated out to a huge number of places it does not repeat.  Go get'em (silly math teacher)   

[the_big_m_in_ok]

Yep 22/7 is just an easy way to remember the rough value of pi.  One of the unique things about pi has always been that even calculated out to a huge number of places it does not repeat.  Go get'em (silly math teacher)   

A math teacher in my high school told my class there was a mathematician who tried to divide pi as far as possible, but later computer programmers proved he mad a mistake about halfway through his career, and he wasted his time from then on.

Pi facts:
http://in.answers.yahoo.com/question/index?qid=20110211022402AAmuNX4

@neptune
Actual, arithmetic pi isn't cyclic; it's absolutely random.

--Lee