On Dec 11, 2007 8:39 AM, Joel B. Mohler <[EMAIL PROTECTED]> wrote:
>
> Hi,
>
> I've noticed a very recent regression -- it worked 2 months ago.
>
> sage: t=var('t')
> sage: f=t*cos(0)
> sage: float(f(1))
> 1.0
> sage: f=t*sin(0)
> sage: float(f(1))
> Traceback...
> <type 'exceptions.TypeError'>: float() argument must be a string or a number
>Exactly the real problem that leads to this also causes the following to failure: sage: w = I - I sage: w 0 sage: float(w) <type 'exceptions.TypeError'> boom! I mentioned this to Robert Bradshaw who suggested a very nice fix that I've implemented and posted at trac #1460: http://trac.sagemath.org/sage_trac/ticket/1460 This also fixes the original problem that you reported above, without changing anything at all about the semantics of Sage (i.e., all the discussion in this thread -- which was of course very interesting). William --~--~---------~--~----~------------~-------~--~----~ To post to this group, send email to sage-devel@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/sage-devel URLs: http://sage.scipy.org/sage/ and http://modular.math.washington.edu/sage/ -~----------~----~----~----~------~----~------~--~---
