try antiderivative with other CAS



Barton Willis wrote:
> If somebody with Mathematica / Axiom / ... could try:
>
>   Integrate[(2*x-1)*sqrt[-(x^2-x-1)*(x^2-x+1)]/((x^2-x-1)*(x^2-x+1)),x],
>
>   
Mathematica 6.0 returns the integral unevaluated.
RJF