[18049] in Athena Bugs
Maple bug
daemon@ATHENA.MIT.EDU (Nick White)
Fri Jul 28 10:59:39 2000
Message-Id: <200007281459.KAA155117@the-brave-little-toaster.mit.edu>
To: bugs@MIT.EDU, 3partysw@MIT.EDU
Date: Fri, 28 Jul 2000 10:59:15 -0400
From: Nick White <nickw@MIT.EDU>
There is a bug in maple that should probably be reported to maplesoft.
http://www.maplesoft.com/support/support.cgi
The bug is as follows:
Trying the following in maple:
int(((3/2)^2)/(t^(5/2)*(s-t)^(5/2)),t = 1 .. (s-1));
produces:
3*(7*s^3-6*s^2-24*s+16)/(s^4*(s-1)^(3/2))
This answer can be (via differentiation) shown to be incorrect.
The correct answer (found via mathematica, verified by hand) is:
3*(16-24*s+6*s^2+s^3)/((s-1)^(3/2)*s^4)
These are similar, but clearly different. Maplesoft might appreciate
knowing this. It is recreateable under both maple 5.1 and 6, under
every platform. A graduate student reported this to OLC, and we
are passing it along.
Thanks,
Nick White
OLC
