Ray,
A recent change to sin.lisp has changed some trig integrals. The change
log indicates that you didn't expect any user visible changes.
----------------------------
revision 1.12
date: 2006/02/23 14:14:08; author: rtoy; state: Exp; lines: +200 -159
o POWERL, NOTSAME, YY, BL, YZ are only used in this file, so change
the name to use the *foo* convention for special variables, and
remove them from the list of globally special variables.
o Declare them special in the routines that need them.
o Reindent INTEGRATOR, RAT8, SUPERTRIG, and RATS to make them easier
to read.
----------------------------
Before:
(%i1) integrate(-a*sin(2*x)/(a*sin(x)^2+b),x);
2
(%o1) - log(a sin (x) + b)
(%i2) integrate(sin(2*x)/sec(x),x);
3
2 cos (x)
(%o2) - ---------
3
After:
(%i1) integrate(-a*sin(2*x)/(a*sin(x)^2+b),x);
2 2 2 2 2
(%o1) - log((a sin (4 x) + (- 8 a b - 4 a ) sin(2 x) sin(4 x) + a cos (4 x)
2 2
+ ((- 8 a b - 4 a ) cos(2 x) + 2 a ) cos(4 x)
2 2 2 2 2 2
+ (16 b + 16 a b + 4 a ) sin (2 x) + (16 b + 16 a b + 4 a ) cos (2 x)
2 2 2
+ (- 8 a b - 4 a ) cos(2 x) + a )/a )/2
(%i2) integrate(sin(2*x)/sec(x),x);
cos(3 x) + 3 cos(x)
(%o2) - -------------------
6
NOTICE
This e-mail and any attachments are private and confidential and may contain privileged information. If you are not an authorised recipient, the copying or distribution of this e-mail and any attachments is prohibited and you must not read, print or act in reliance on this e-mail or attachments.
This notice should not be removed.