"Robert A. LaBudde" wrote:
>
> At 10:24 AM 10/28/99 +0300, you wrote:
> >Hi Robert!
> >
> >I've got interested by this way of division. How do you decompose 1/5 into
> >(1/4-1/16+1/64-1/256...)? It may be useful in digital filter design with
> >fixed weights  :)
> >
> >Regards,
> >Nikolai
>
> X / 5 = X/(4+1) = (X/4) /(1+1/4)= (X/4) * (1 - 1/4 + 1/16 - 1/64 + 1/256 ...)
>          = X/4 - X/16 + X/64 - X/256 + X/1024 - X/4096 ...
>
> ================================================================
> Robert A. LaBudde, PhD, PAS, Dpl. ACAFS  e-mail: ral@lcfltd.com
> Least Cost Formulations, Ltd.                   URL: http://lcfltd.com/
> 824 Timberlake Drive                            Tel: 757-467-0954
> Virginia Beach, VA 23464-3239                   Fax: 757-467-2947
>
> "Vere scire est per causae scire"
> ================================================================

Hello,

An alternative method would be:
   result = 0;
   while(X>=5)
   {
      X = X - 5;
      result = result + 1;
   }

-Andre