Hi. What's going on here?
<sage> y=(x^2)*exp(x)/(1+exp(x))^2 integrate(y,(x,-infinity,infinity)) 0 </sage> Sage gives me zero here. But 'y' is strictly positive everywhere, and I happen to know that the analytic answer is pi^2/3. What's going on here? -- Robin Hankin Uncertainty Analyst [email protected] -- 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
