how to generate pi in c

Joe Zeff joe at zeff.us
Fri Nov 5 17:55:36 UTC 2010


On 11/05/2010 09:49 AM, Andrew Haley wrote:
> On 11/05/2010 04:40 PM, Arthur Bela wrote:
>> Does anyone has a "generate-pi.c" source code?
>
> Lots of people do.  You'll have to be a bit more specific about
> what you actually want.  I guess it's more than
>
>     4*atan(1.0)
>
> Andrew.

As a side note, Dan Alderson (He wrote JPL's spaceprobe navigation 
software back in the late '70s, early '80s.) always used that in his 
programs because it got pi to machine accuracy, not just the number of 
digits you wrote.


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