It's supposed to mean that it can be evaluated to a numerical value with evalf(). I guess infinities are also considered numerical in this sense.
Aaron Meurer On Sat, Jun 5, 2021 at 11:11 PM Paul Royik <distantjob...@gmail.com> wrote: > > Why S.Infinity.is_number (as well as S.ComplexInfinity.is_number) is True and > S.NaN.is_number is True, while sin(S.Infinity) (i.e. AccumBounds) is False? > > I just can't understand what is_number means in SymPy. > > -- > 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/4e1bf570-a80d-40b8-a658-30a1c3045bacn%40googlegroups.com. -- 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/CAKgW%3D6JC2uDrYYOsjMJOOu_%2BMThc5qauo0eW%2BHdLHhfe_bjRnA%40mail.gmail.com.
