I think that makes sense. I think this functionality is already implemented in Polys module in some form. I am not able to pin point it.
> First, it' unnecessarily slow. > Just check whether f == round(f) for floats. > > Second, the question whether a float is integral or not borders on > madness - you never know whether the answer "it's a natural number" > comes from the round-off lottery or is genuine. > > Third, regular expressions aren't going to give any meaningful results > for symbolic expressions, and the "Sym" in SymPy defines its mission > statement: symbolic math. > > If you pursue a way to find out whether a *symbolic expression* is in > ZZ, QQ, Complex, or whatever, then that would be worth thinking about. > -- 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/ce634669-04e1-48ab-83b5-7f5c1884b0af%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
