sqrt(1-x^2)/(2-2*x^2) --/--> 1/(2*sqrt(1-x^2))



There is no universal definition of "clearly simpler".  In any case, more
important in some ways than superficial simplicity is consistency.

       -s

On Sun, Apr 29, 2012 at 18:16, Oliver Kullmann <O.Kullmann at swansea.ac.uk>wrote:

> On Sun, Apr 29, 2012 at 05:19:00PM -0400, Stavros Macrakis wrote:
> > Another way to solve the original problem is 1/gfactor(1/S)). But that
> > really shouldn't be necessary.  An even simpler case showing this problem
> > is sqrt(1-x)/(x-1).
> >
> >             -s
> >
>
> I was trying to help Maxima by giving it the term -sqrt(1-x)/(x-1) to
> simplify,
> however it doesn't help, and it seems Maxima can't simplify
> -1/(x-1) to 1/(1-x), which I think is clearly simpler.
>
> Oliver
>
>