I think this is a bug: the type of the result should be consistent. David On Tue, Oct 30, 2012 at 3:54 PM, mmarco <mma...@unizar.es> wrote:
> There is an inconsistency in the behaviour of the cosine function > sage: type(cos(1)) > <type 'sage.symbolic.expression.Expression'> > sage: type(cos(pi)) > <type 'sage.symbolic.expression.Expression'> > sage: type(cos(0)) > <type 'int'> > > It also happens with the sine: > > sage: type(sin(0)) > <type 'int'> > sage: type(sin(pi)) > <type 'sage.symbolic.expression.Expression'> > > and the exponential: > sage: type(exp(0)) > <type 'int'> > sage: type(exp(1)) > <type 'sage.symbolic.expression.Expression'> > > the logarithm: > > sage: type(log(1)) > <type 'int'> > sage: type(log(2)) > <type 'sage.symbolic.expression.Expression'> > sage: type(log(0)) > <type 'sage.symbolic.expression.Expression'> > > > > Is there some reason for this or is it a bug? Shouldn't the answer be, > at least, a sage Integer and not a python int? > > -- > You received this message because you are subscribed to the Google Groups > "sage-devel" group. > To post to this group, send email to sage-devel@googlegroups.com. > To unsubscribe from this group, send email to > sage-devel+unsubscr...@googlegroups.com. > Visit this group at http://groups.google.com/group/sage-devel?hl=en. > > > -- You received this message because you are subscribed to the Google Groups "sage-devel" group. To post to this group, send email to sage-devel@googlegroups.com. To unsubscribe from this group, send email to sage-devel+unsubscr...@googlegroups.com. Visit this group at http://groups.google.com/group/sage-devel?hl=en.
