---------- Forwarded message ---------- From: Aaron Tresham <[email protected]> Date: Wed, Oct 15, 2014 at 1:17 PM Subject: [sage-cloud] Strange behavior when integrating 1/x^p To: [email protected]
I'm assuming the problem I'm encountering is not in SMC, but in whatever program is being used to integrate. But perhaps someone here knows why this happens. If I try the following integrals, the first three work, but the last returns an error (RuntimeError: ECL says: CEXPT only defined for non-negative integral exponents.). integral(1/x^(1/2),x,1,10) integral(1/x^.5,x,1,10) integral(1/x^(3/2),x,1,10) integral(1/x^1.5,x,1,10) If the power is pi or sqrt(2), it also works fine. And if I change all the powers to negative, then it works. So it seems non-integer rational numbers greater than 1 must be written as a fraction. Thanks, Aaron -- You received this message because you are subscribed to the Google Groups "sage-cloud" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/sage-cloud/700ac3b2-1e3a-4e34-8679-6e38258ac7fa%40googlegroups.com. For more options, visit https://groups.google.com/d/optout. -- William Stein Professor of Mathematics University of Washington http://wstein.org -- You received this message because you are subscribed to the Google Groups "sage-support" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/sage-support. For more options, visit https://groups.google.com/d/optout.
