sorry - correction. I was thinking to return a Dummy but then realized that if you are making the name uniq you can pass back a Symbol
def uniqparam(eq, t='t'): s = eq.atoms(Symbol) while any(si.name == t for si in s): t = "_" + t return Symbol(t) -- 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. For more options, visit https://groups.google.com/groups/opt_out.