how to generate pi in c
Joe Zeff
joe at zeff.us
Sun Nov 7 20:28:54 UTC 2010
On 11/07/2010 12:08 PM, Wolfgang S. Rupprecht wrote:
>
> Klaus-Peter Schrage<kpschrage at gmx.de> writes:
>> You are probably alle wrong - pi equals 3.125, see:
>> http://www.correctpi.com/
>
> Arrrg. I don't believe that I actually tried to read that and follow
> his logic. Now my brain hurts. This needs a NSFB warning.
>
One question: does he ever explain why his value gets the wrong answers
and the "traditional" one doesn't?
Back on the original topic, I suppose, if you want to be weird, you
could try the method I did, about 25 years ago: use numeric integration
to find the area under the function f(x) = sqrt( 1 - y^2 ) from 0 to 1
then multiply by 4. I did it in FORTRAN on a CP/M machine and it needed
all night to come up with an answer to the limits of the machine's
precision.
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