Status: Accepted
Owner: asmeurer
Labels: Type-Defect Priority-Medium Solvers
New issue 2112 by asmeurer: classify_ode(C_j(t).diff(t) + alpha_j**2*C_j(t)
- 4*exp(-t)/(alpha_j**2*J0(alpha_j*c)), C_j(t)) doesn't catch
undetermined_coefficients
http://code.google.com/p/sympy/issues/detail?id=2112
In [11]: J0 = Function('J0')
In [12]: C_j = Function('C_j')
In [13]: var('c alpha_j t')
Out[13]: (c, α_j, t)
In [14]: classify_ode(C_j(t).diff(t) + alpha_j**2*C_j(t) -
4*exp(-t)/(alpha_j**2*J0(alpha_j*c)), C_j(t))
Out[14]: (1st_linear, nth_linear_constant_coeff_variation_of_parameters,
1st_linear_Integral,
nth_linear_constant_coeff_variation_of_parameters_Integral)
nth_linear_constant_coeff_undetermined_coefficients should also be in there.
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