I know Stavros M saw it and Mike cc'd Robert D, so two of the main maxima developers definitely know about it now.
Thanks again. On Thu, Nov 20, 2008 at 11:00 AM, pong <[EMAIL PROTECTED]> wrote: > > Yes, integral does not handle abs correctly. > > sage: integral(abs(x),x) > integrate(abs(x), x) > > sage: integral(max(x,-x),x) > x^2/2 > > If that's for sure a bug coming from maxima, I hope someone it can be > reported to their bug list. > I can see that it has been reported by David to the maxima-user list, > but somehow it does not show up in either the user or the bug list of > maxima. Isn't that strange? > > > On Nov 19, 9:33 am, "David Joyner" <[EMAIL PROTECTED]> wrote: >> Thanks for reporting this. I emailed the maxima users list. >> >> On Wed, Nov 19, 2008 at 11:50 AM, pong <[EMAIL PROTECTED]> wrote: >> >> > Maybe someone has reported this already... but looks like there is a >> > bug in integral >> >> > sage: integral(x*abs(9-x^2), x, -6, 0) >> > 162 >> >> > The integrand is negative on (-6,0) > > > --~--~---------~--~----~------------~-------~--~----~ To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/sage-support URLs: http://www.sagemath.org -~----------~----~----~----~------~----~------~--~---
