Comment #4 on issue 2276 by asmeurer: integrate() should use the ode
module's undetermined coefficients solver when possible
http://code.google.com/p/sympy/issues/detail?id=2276
If I remember how things work correctly, there is no need for any of that.
I think there is an internal function in dsolve that computes the
particular solution separately from the homogeneous solution. So it would
just have to be called. In that case, you don't ever have to worry about
arbitrary constants.
Actually, comment 2 is better suited to issue 1739.
If the matching function (I think it's called
_undetermined_coefficients_match or something) doesn't return False, then
the solver should be able to handle it. NotImplementedError would indicate
a bug.
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