Status: New Owner: ---- Labels: Type-Defect Priority-Medium
New issue 3069 by [email protected]: dsolve gets too many constants for a first order linear ode
http://code.google.com/p/sympy/issues/detail?id=3069 ode2 = (2*t+3)*Derivative(y(t),t) + (4*t**2 + 12*t+7)*y(t) sol = dsolve(ode2,y(t)) The dsolve gives the solution 2 2 - t - 3⋅t - t - 3⋅t y(t) = C₁⋅t⋅ℯ + C₂⋅ℯ But this is only a first-order equation, and should only have 1 integration constant. The solution should be 2 - t - 3⋅t C₁⋅(-2⋅t - 3)⋅ℯ -- You received this message because you are subscribed to the Google Groups "sympy-issues" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/sympy-issues?hl=en.
