I would like to do substitution for a set of symbols into an expression where not all the symbols may be defined.
something like (1 + x).subs(dict(x=1, y=2)) which raises a cryptic error since y is not in the expression. (the problem this is for is that I am making a jacobian then substituting in the equilibrium values, but I don't want to check all n**2 entries to see which symbols have dropped out). Any tips, pointers? thanks, Gabriel --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "sympy" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/sympy?hl=en -~----------~----~----~----~------~----~------~--~---
