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
On Wed, Feb 1, 2012 at 03:36, Aleksas Domarkas <aleksasd873 at gmail.com>wrote:
> Barton Willis willisb at unk.edu
> Tue Jan 31 19:12:08 CST 2012
>
> The general simplifier does sqrt(1-x^2)/(1-x^2) --> 1/sqrt(1-x^2), but it
> doesn't
> simplify sqrt(1-x^2)/(2-2*x^2) to 1/(2*sqrt(1-x^2)). Ratsimp, radcan, and
> rootscontract
> don't do this simplification either.
>
> --Barton
>
>
> *****************************************************************************************
>
> (%i1) S:sqrt(1-x^2)/(2-2*x^2)$
> (%i2) subst(2-2*x^2=2*(1-x^2),S);
> (%o2) 1/(2*sqrt(1-x^2))
>
> Aleksas
>
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