I managed to get it. Thanks a lot for your help!! On Mon 21. Mar 2022 at 13:07, Peter Stahlecker <peter.stahlec...@gmail.com> wrote:
> Dear Liu, > > Thanks for your prompt reply! > I tried as you suggested, where speedx is the expression, whose numerator > and denominator I want to get. > I got the error below. > If I do it without ‚sm.‘, I get the error message expr not known. > > Thanks for your further help! > > AttributeError Traceback (most recent call last) > Input In [7], in <module> 83 print(speedx) 84 print(speedy)---> 85 f, > g = sm.expr.as_numer_denom(speedx) 86 print(r, g) 88 q = [q1, q2, q3] > AttributeError: module 'sympy' has no attribute 'expr' > > > > On Mon 21. Mar 2022 at 10:34 Qijia Liu <liu...@pku.edu.cn> wrote: > >> f,g=expr.as_numer_denom() >> >> -- >> 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 view this discussion on the web visit >> https://groups.google.com/d/msgid/sympy/78730755-ed5c-4490-b4d2-1aa5d72e84f0n%40googlegroups.com >> <https://groups.google.com/d/msgid/sympy/78730755-ed5c-4490-b4d2-1aa5d72e84f0n%40googlegroups.com?utm_medium=email&utm_source=footer> >> . >> > -- > Best regards, > > Peter Stahlecker > -- Best regards, Peter Stahlecker -- 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 view this discussion on the web visit https://groups.google.com/d/msgid/sympy/CABKqA0abn5wS2yqRexO%2B_YGg9cZ7u4RaXOdP5tPMOpNCLK_KKQ%40mail.gmail.com.
