Hi list, I found a problem with simplify_radical()
sage: f(x)=asin(2*x/(x^2+1)) sage: g=f.derivative();g x |--> -2*(2*x^2/(x^2 + 1)^2 - 1/(x^2 + 1))/sqrt(-4*x^2/(x^2 + 1)^2 + 1) sage: g.simplify_radical() x |--> -2/(x^2 + 1) The last answer should be: x |--> -2/(x^2 + 1)* (x^2-1)/abs(x^2-1) or easier x |--> -2/(x^2 + 1)*sign(x^2-1) Best, -- To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
