POV-Ray : Newsgroups : povray.binaries.images : The Pi Pool Balls : Re: The Pi Pool Balls Server Time
8 Aug 2024 06:16:16 EDT (-0400)
  Re: The Pi Pool Balls  
From: PM 2Ring
Date: 25 Nov 2005 07:15:00
Message: <web.4386ff4d663c05192eef1b3b0@news.povray.org>
"the_ajj" <nomail@nomail> wrote:
> "PM 2Ring" <nomail@nomail> wrote:
> > If you like, I can translate a short Pi generator into POV SDL that will
> > give about 700 digits before it gets overflow errors. On a related note, I
> > posted a POV scene file a few months back that can calculate e to millions
> > of digits. I'll repost it if you like.

> Pi generator would be cool! Could generate some very nice abstract images
> then!  Be great if you could post it.

(I thought I replied to this bit already, but I can't see my reply anywhere.
Oh well...)

I'll work on converting Dik T. Winter's Pi program into POV SDL this
weekend. It shouldn't take too long - I'll just modify my e calculator.
Here's Dik's C source for this algorithm, which can actually do a little
over 800 digits.

int a=10000,b,c=2800,d,e,f[2801],g;main(){for(;b-c;)f[b++]=a/5;
     for(;d=0,g=c*2;c-=14,printf("%.4d",e+d/a),e=d%a)for(b=c;d+=f[b]*a,
     f[b]=d%--g,d/=g--,--b;d*=b);}

Do a Google Groups search on

 Dik T. Winter Pi digits

for more info.


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