Since DiracDelta is a distribution, not a function, and presumably the limit program is oriented toward finding limits of analytic functions, it would be fairly reasonable for the limit program to not work on this kind of expression. The mathematical context in which DiracDelta is understood and useful is under an integral sign.
I have not tried sympy on this example, but it seems to me that expecting sympy to answer a poorly formulated question "correctly" is not going to reveal a bug in the program. It is "user error". RJF On Saturday, August 13, 2016 at 5:25:22 AM UTC-7, SAMPAD SAHA wrote: > > Suppose I want to find the value of f(x) for > f(x) = DiracDelta(x - 30) + Heaviside(x) at x = 30+ in sympy. How can we > do this? > > Regards > Sampad Kumar Saha > Mathematics and Computing > I.I.T. Kharagpur > > > > -- 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 sympy+unsubscr...@googlegroups.com. To post to this group, send email to sympy@googlegroups.com. Visit this group at https://groups.google.com/group/sympy. To view this discussion on the web visit https://groups.google.com/d/msgid/sympy/746820c9-1081-4b78-b164-0fd79e3126bd%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
