I have the following expresssion: f=x**(Rational(2,3))
How can I get 1, when substituting (-1) instead of complex number? For now, I got complex number when run f.subs(x,-1).evalf() -- 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/662a2085-1030-42d5-bbde-feb524fd246c%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
