POV-Ray : Newsgroups : povray.text.tutorials : Summing over indices of an array : Re: Summing over indices of an array Server Time
20 Sep 2021 07:00:55 EDT (-0400)
  Re: Summing over indices of an array  
From: Christoph Hormann
Date: 22 Jan 2005 03:30:02
Message: <cst2rq$36v$1@chho.imagico.de>
Mike Williams wrote:
> 
> I think you have to use a loop:
> 

Bah, you surely don't have to:

#macro Add(i)
   #if (i>0)
     #local R=Add(i-1)+elem[i];
   #else
     #local R=elem[i];
   #end
   R
#end

#declare Sum=Add(n);

;-)

Christoph

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