On Sat, Feb 23, 2013 at 6:13 AM, Aaron Meurer <asmeu...@gmail.com> wrote: > I get the point of preprocessing, but when would you ever want > prep=False? It seems like all it is good for is internal usage (which > means it shouldn't be on dsolve, but rather on the internal > functions).
You would want it False whenever you want dsolve to put the equation in some sort of canonical form for identification purposes. Allowing the user to make it True allows that preprocessing to be skipped...sometimes you don't want your equation to be changed around. Maybe you don't want some derivatives calculated...sorry I don't recall all the details. -- 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 http://groups.google.com/group/sympy?hl=en. For more options, visit https://groups.google.com/groups/opt_out.