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John VanSickle wrote:
> Jellby wrote:
>
>> #declare X=Rmin*sqrt(1-Rmaj*Rmaj/(Rmin*Rmin));
>
> Why not X=sqrt(Rmin*Rmin-Rmaj*Rmaj) ?
>
Because Jellby's version gives more precision? ;)
Jerome
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+------------------------- Jerome M. BERGER ---------------------+
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