On 16 June 2010 15:48, rjf <fate...@gmail.com> wrote: > > > On Jun 15, 9:28 pm, Tom Coates <t.coa...@imperial.ac.uk> wrote: > > By your reasoning, and for other domains we would have the following > behavior:
> sqrt(-1) --> error. after all, some Sage users may not have > encountered imaginary numbers. > RJF That's a very weak argument. The failure to understand sqrt(-1)=j (as electrical engineers use), or 'i' as mathematicians use, is purely the result of a lack of mathematical knowledge. It would be dumb for Sage class sqrt(-1) as an error. That appears to be a different situation than factorial. BTW, the #6 hit for factorial in Google, and the number 1 hit for factorial calculator is this http://www.cs.uml.edu/~ytran/factorial.html One might have hoped a professor of computer science could have done a bit better. Dave -- To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URL: http://www.sagemath.org
