More generally, SymPy's integrator doesn't know how to return delta functions. It only knows how to deal with delta functions as arguments to integrals.
Aaron Meurer On Fri, Jul 3, 2015 at 6:47 AM, Kalevi Suominen <[email protected]> wrote: > > > On Friday, July 3, 2015 at 1:58:06 PM UTC+3, Paul Royik wrote: >> >> I want to calculate inverse laplace of e^(-2s) which is dirac(t-2), but >> sympy gives unevaluated. > > > It is currently not possible to compute in SymPy. The inverse transform > involves integration along a vertical line in the complex plane and the > absolute value of e^(--2s) is constant along any such line. Hence the > function is not integrable on a vertical line in the usual sense, and its > integration is currently not supported by SymPy. > > -- > You received this message because you are subscribed to the Google Groups > "sympy" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To post to this group, send email to [email protected]. > Visit this group at http://groups.google.com/group/sympy. > To view this discussion on the web visit > https://groups.google.com/d/msgid/sympy/52c17e0e-2055-4531-a87d-e59276b474ca%40googlegroups.com. > > For more options, visit https://groups.google.com/d/optout. -- You received this message because you are subscribed to the Google Groups "sympy" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/sympy. To view this discussion on the web visit https://groups.google.com/d/msgid/sympy/CAKgW%3D6LKS05Oh_rTvvOWZFE3Vd95kOaS6A%3DX54YnY0xMrkV4OQ%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
