Status: New Owner: ---- Labels: Type-Defect Priority-Medium
New issue 2190 by [email protected]: dsolve first order linear differential equation failed.
http://code.google.com/p/sympy/issues/detail?id=2190 from sympy import * u = Function("u") y = Function("y") t = symbols("t") print dsolve(y(t).diff(t)+y(t)-u(t), y(t)) ==> y(t) == (C1 + exp(t)*u(t) - D(u(t), t)*exp(t))*exp(-t) I think the result is wrong, according to wolframalpha: http://www.wolframalpha.com/input/?i=y(t)+%2B+y(t)'+-+u(t)%3D0 -- 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.
