#17468: Strange integration error/hang with log(abs(sin(x)))
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Reporter: kcrisman | Owner:
Type: defect | Status: new
Priority: major | Milestone: sage-6.5
Component: PLEASE CHANGE | Resolution:
Keywords: | Merged in:
Authors: | Reviewers:
Report Upstream: Reported upstream. No | Work issues:
feedback yet. | Commit:
Branch: | Stopgaps:
Dependencies: |
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Changes (by kcrisman):
* upstream: N/A => Reported upstream. No feedback yet.
Comment:
See https://sourceforge.net/p/maxima/bugs/2853/ and note that the closely
related integral `integral(log(abs(sin(x))),x,0,%pi/2)` is just `-pi
log(2)`, according to
[http://www.wolframalpha.com/input/?i=integrate+log%28abs%28sin%28x%29%29%29+from+0+to+pi%2F2
Wolfram Alpha], though I haven't done the improper integral myself.
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Ticket URL: <http://trac.sagemath.org/ticket/17468#comment:2>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
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