Hi, If I read this: http://en.wikipedia.org/wiki/Risch_algorithm I understand that : f=x/(sqrt(x^4+10*x^2-96*x-71)) has an anti-primitive.I do not have maple, so I do nt know if Maple can integrate it; bur sage cannot:
>f=x/(sqrt(x^4+10*x^2-96*x-71)) >integral(f,x) integrate(x/sqrt(x^4 + 10*x^2 - 96*x - 71), x) t. -- You received this message because you are subscribed to the Google Groups "sage-devel" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-devel+unsubscr...@googlegroups.com. To post to this group, send email to sage-devel@googlegroups.com. Visit this group at http://groups.google.com/group/sage-devel. For more options, visit https://groups.google.com/d/optout.
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