2013/5/21 Stefan Krastanov <krastanov.ste...@gmail.com> > mpmath also supports abstract base classes. So we need just to test > `isinstance(obj, AppropriateAbstractBaseClass)`. > > The idea is not to go for only python types, rather just use them where > appropriate (int instead of Integer for instance, as Integer does not bring > anything besides performance degradation). >
Integer brings something very important: the ability for 1/2 to return a Rational, instead of 0.5 or 0. There can be issues when multiplying python float and mpmath float, but > these issues exist now as well. And it is mpmath's job to take care of > them, not ours. For instance, the horrible mess for precision tracking in > evalf has no place in sympy. It is something that can be done in mpmath. > mpmath is a bit dead, in no small part because of SymPy's decision to use a static copy of it instead of treating like a proper upstream. -- 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?hl=en-US. For more options, visit https://groups.google.com/groups/opt_out.
