Dear List Members,
My Maximas also suffer from this bug:
Mac-Pro:bin jalaluddin$ maxima
Maxima 5.22.1 http://maxima.sourceforge.net
using Lisp CMU Common Lisp 19f (19F)
Distributed under the GNU Public License. See the file COPYING.
Dedicated to the memory of William Schelter.
The function bug_report() provides bug reporting information.
(%i1) integrate(cos(x)*cos(2*x),x);
cos(3 x) cos(x)
(%o1) - -------- - ------
6 2
(%i2) diff(%,x,1);
sin(3 x) sin(x)
(%o2) -------- + ------
2 2
Also using the macports version:
Mac-Pro:bin jalaluddin$ pwd
/opt/local/bin
Mac-Pro:bin jalaluddin$ /opt/local/bin/maxima
Maxima 5.22.1 http://maxima.sourceforge.net
using Lisp SBCL 1.0.44
Distributed under the GNU Public License. See the file COPYING.
Dedicated to the memory of William Schelter.
The function bug_report() provides bug reporting information.
(%i1) integrate(cos(x)*cos(2*x),x);
cos(3 x) cos(x)
(%o1) - -------- - ------
6 2
(%i2) diff(%,x,1);
sin(3 x) sin(x)
(%o2) -------- + ------
2 2
(%i3)