"Roger Stafford" wrote in message <email@example.com>... > "Mark Shore" wrote in message <firstname.lastname@example.org>... > > "Alaa Elwany" <email@example.com> wrote in message <firstname.lastname@example.org>... > > > x1 = A / (B^x2 + C^x2) > > Without taking anything away from Rogers's comment, why two constants B and C when they could be replaced by a single constant (= B + C)? > - - - - - - - - - > Mark, B^x2+C^x2 and (B+C)^x2 are usually not equal. > > Roger Stafford
Aggh... of course not. I originally read this on a small iPhone screen and it looked like B*X2 + C*X2. (I _was_ wondering about it, but not enough it seems.)
Embarrassingly there is no way to correct my original comment.