#16643: integrate() problem
-------------------------------------+-------------------------------------
Reporter: rws | Owner:
Type: defect | Status: needs_review
Priority: major | Milestone: sage-
Component: symbolics | duplicate/invalid/wontfix
Keywords: integration, | Resolution:
maxima | Merged in:
Authors: | Reviewers: Peter Bruin
Report Upstream: Fixed upstream, | Work issues:
but not in a stable release. | Commit:
Branch: | Stopgaps:
Dependencies: |
-------------------------------------+-------------------------------------
Comment (by rws):
SymPy is much faster to concede defeat.
{{{
sage: f=(tan(x)^2 + 1)*(x + tan(x))*e^tan(x) + (tan(x)^2 + 2)*e^tan(x)
sage: %time integrate(f,x)
CPU times: user 5min 45s, sys: 219 ms, total: 5min 45s
Wall time: 5min 45s
integrate((tan(x)^2 + 1)*(x + tan(x))*e^tan(x) + (tan(x)^2 + 2)*e^tan(x),
x)
sage: import sympy
sage: x = sympy.Symbol('x')
sage: %time sympy.integrate(f,x)
CPU times: user 9.51 s, sys: 36 ms, total: 9.54 s
Wall time: 9.52 s
Integral((x + tan(x))*(tan(x)**2 + 1)*exp(tan(x)) + (tan(x)**2 +
2)*exp(tan(x)), x)
}}}
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Ticket URL: <http://trac.sagemath.org/ticket/16643#comment:12>
Sage <http://www.sagemath.org>
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