On Tue, Apr 8, 2008 at 7:11 PM, William Stein <[EMAIL PROTECTED]> wrote:
>
>  On Tue, Apr 8, 2008 at 9:48 AM, kcrisman <[EMAIL PROTECTED]> wrote:
>  >
>  >  Tried on sagenb.org:
>  >
>  >  sage: t=real(x)
>  >  sage: imag(real(i));imag(t(i))
>  >  0.0
>  >  1.0
>
>  We have real(x) is just x in Sage:
>
>  sage: t = real(x)
>  t
>  sage: t
>  x
>
>  This is *because* of Maxima, which stupidly does this:
>
>  sage: !maxima
>  Maxima 5.13.0 http://maxima.sourceforge.net
>  Using Lisp CLISP 2.41 (2006-10-13)
>  Distributed under the GNU Public License. See the file COPYING.
>  Dedicated to the memory of William Schelter.
>  This is a development version of Maxima. The function bug_report()
>  provides bug reporting information.
>  (%i1) realpart(x);
>  (%o1)                                  x
>  (%i2)
>
>  --------
>
>  This is about the millionth "maxima is stupid" bug we've seen at this 
> point...
>  It is good to list them all very carefully.
>
>  Bill Furnish is going to spend the whole summer  full time (funded by 
> Google!)
>  working on rewriting the symbolic calculus backend from scratch in Cython
>  (he's already working on this, by the way), and the hope is that
>  then he'll be able to fix many such issues.  Bill -- comments?

Not only he, but any other Sage developer and that's the main point.

Ondrej

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