Comment #20 on issue 3086 by smi...@gmail.com: round() function overrides built-in
http://code.google.com/p/sympy/issues/detail?id=3086
There is a sympy object, Number, from which Float, Integer, Rational and +/-Infinity derive. Things which evaluate to a Number are not necessarily Numbers themselves, e.g. `sqrt(3) + 2` is an Add object, not within the scope of (not an instance of) Number.
>>> sqrt(3).is_number True >>> sqrt(3).is_Number False -- You received this message because you are subscribed to the Google Groups "sympy-issues" group. To post to this group, send email to sympy-issues@googlegroups.com. To unsubscribe from this group, send email to sympy-issues+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/sympy-issues?hl=en.