Status: Accepted
Owner: asmeurer
Labels: Type-Defect Priority-Medium Solvers WrongResult
New issue 2688 by asmeurer: classify_ode() doesn't catch a undetermined
coefficients case
http://code.google.com/p/sympy/issues/detail?id=2688
In [86]: c = S(1)/2 - I
In [87]: classify_ode(Eq(diff(f(x), x), I*f(x) + c), f(x))
Out[87]:
(separable, 1st_linear, Bernoulli,
nth_linear_constant_coeff_variation_of_parameters, separable_Integral,
1st_linear_Integral,
Bernoulli_Integral,
nth_linear_constant_coeff_variation_of_parameters_Integral)
undetermined coefficients should also be there.
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