Use g.free_symbols to get all the variables that g depends on. Aaron Meurer
On Sat, Jun 6, 2015 at 5:43 PM, brombo <abrombo...@gmail.com> wrote: > If I have a sympy expression, g, that is a function of sympy symbols (say x, > y, z, and t) how can I determine that g is not dependent on any other > symbols. The context for this is that I wish to determine if I have a > metric tensor that tensor is a function only of x, y, z, and t and not a > fuction of any other symbols (for example spherical coordinates) so that I > can know that if I substitute numerical values for x, y, z, and t all > components of the metric tensor will be numbers that depend on no > parameters. > > -- > 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. > To view this discussion on the web visit > https://groups.google.com/d/msgid/sympy/08765f44-6552-4ffc-b485-c30a76564790%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 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. To view this discussion on the web visit https://groups.google.com/d/msgid/sympy/CAKgW%3D6JMBweGQYRBvSnahmfgrXX_8aiDCtJcDktRv%2BAWdD%2Bb%3DA%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
