I'm not sure if SymPy has much to say in the matter. This strikes me as entirely NumPy's behavior.
Aaron Meurer On Sat, Jan 18, 2014 at 3:05 PM, F. B. <franz.bona...@gmail.com> wrote: > I came across with this strange behavior: > > In [1]: o=numpy.array(3, dtype=object) > > In [2]: o > Out[2]: array(3, dtype=object) > > In [3]: o.ndim > Out[3]: 0 > > In [4]: S.One*o > Out[4]: 3.00000000000000 > > In [7]: e=numpy.array([3], dtype=object) > > In [8]: e.ndim > Out[8]: 1 > > In [9]: S.One*e > Out[9]: 3.00000000000000 > > In [10]: u = numpy.array([3, 4, 5], dtype=object) > > In [11]: S.One*u > Out[11]: array([3, 4, 5], dtype=object) > > > When S.One gets multiplied by either a rank zero or rank one numpy.ndarray > with a sympy integer or python integer, the result is converted to float. I > think this is the default behavior in numpy upon multiplication by python > integers. > > But is this good when the multiplication involves sympy integers? I think > that the result should still be a sympy integer. > > -- > 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. > For more options, visit https://groups.google.com/groups/opt_out. -- 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. For more options, visit https://groups.google.com/groups/opt_out.
