#8729 closed defect (duplicate)
simple integral using trig functions gives wrong answer
Reported by: | jason | Owned by: | burcin |
---|---|---|---|
Priority: | major | Milestone: | sage-duplicate/invalid/wontfix |
Component: | calculus | Keywords: | |
Cc: | kcrisman | Merged in: | |
Authors: | Reviewers: | ||
Report Upstream: | N/A | Work issues: | |
Branch: | Commit: | ||
Dependencies: | Stopgaps: |
Description
See http://groups.google.com/group/sage-devel/browse_frm/thread/f82e24efdfe23b07/d9e563f086b1136d for a solution
sage: a=sqrt((sin(t))^2 + (cos(t))^2) sage: integrate(a, t, 0, 2*pi) # WRONG! pi sage: a.simplify_full().simplify_trig() 1 sage: integrate(a.simplify_full().simplify_trig(), t, 0, 2*pi) 2*pi
Change History (6)
comment:1 Changed 6 years ago by jason
comment:2 Changed 6 years ago by jason
- Cc kcrisman added
comment:3 Changed 6 years ago by jason
This is fixed in the maxima upgrade at #8731
comment:4 Changed 5 years ago by rlm
- Resolution set to duplicate
- Status changed from new to closed
comment:5 Changed 5 years ago by kcrisman
Note put on #8731 to check this with a doctest when that ticket is done.
comment:6 Changed 5 years ago by rlm
- Milestone changed from sage-4.5 to sage-duplicate/invalid/wontfix
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It looks like this is fixed in maxima 5.21.0, so maybe we should just upgrade.