On Wed, Nov 19, 2008 at 8:50 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)
Yep, these are coming from Maxima: (%i11) integrate(x*abs(9-x^2), x, -6, 0); (%o11) 162 (%i12) integrate(x*abs(9-x^2), x, -6, -3); (%o12) -729/4 (%i13) integrate(x*abs(9-x^2), x, -3, 0); (%o13) -81/4 I've CC'd Robert Dodier on this. --Mike --~--~---------~--~----~------------~-------~--~----~ 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 -~----------~----~----~----~------~----~------~--~---