On Thu, May 12, 2011 at 5:10 PM, Aaron Meurer <asmeu...@gmail.com> wrote: > > Have you seen any deficiencies in SymPy like your ETFE that would > prevent you from moving? > > Aaron Meurer
Off the top of my head, something like testeq from Maple would be great. pdsolve, DETools, and PDETools would be nice as well. Oh, and I'd like to have inert sum and integrals so they won't be evaluated. Volume and Surface integrals over a general V and S go with this as well. However, this last one isn't in a CAS that I use, I just want it. Other things I'm guessing are there, but I'm not sure how they're done. - Extract the name of a function (e.g., f of f(x)). This is a building block to differentiating with respect to a function f(x) so I can do dL/df. Once I extract the name of a function, I build a symbol to equate it to. Then differentiate with respect to it and switch back. - Extract the variables of the function (e.g., x in f(x) or x,t in g(x,t)). - Get the integrand, variable, and range of an integral, so I can manipulate the integral. Also for a sum. - Find if an integral, function, and sum is in an expression. Thanks, Tim. -- Tim Lahey PhD Candidate, Systems Design Engineering University of Waterloo http://about.me/tjlahey -- You received this message because you are subscribed to the Google Groups "sympy" group. To post to this group, send email to sympy@googlegroups.com. To unsubscribe from this group, send email to sympy+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/sympy?hl=en.
