#17608: Allow use of principal value of integral if it's right
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Reporter: kcrisman | Owner:
Type: defect | Status: new
Priority: major | Milestone: sage-6.5
Component: calculus | Keywords:
Merged in: | Authors:
Reviewers: | Report Upstream: N/A
Work issues: | Branch:
Commit: | Dependencies:
Stopgaps: |
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{{{
(%i1) integral(sec(x), x, -%pi/4, %pi/4);
%pi %pi
(%o1) integral(sec(x), x, - ---, ---)
4 4
(%i2) integrate(sec(x), x, -%pi/4, %pi/4);
Principal Value
sqrt(2) + 2 sqrt(2) - 2
(%o2) log(-----------) - log(- -----------)
2 2
}}}
but Sage has
{{{
sage: integral(sec(x), x, -pi/4, pi/4)
ValueError: Integral is divergent
}}}
because of the PV. See also #13511.
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Ticket URL: <http://trac.sagemath.org/ticket/17608>
Sage <http://www.sagemath.org>
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