On Tue, May 27, 2008 at 2:37 PM, Friedrich Hagedorn <[EMAIL PROTECTED]> wrote:
>
> Hello,
>
> from the 'diff and subs' thread I noticed the following problem with
> the division operation:
>
> % ipython
> [...]
>
> In [1]: from sympy import *
>
> In [2]: var('x y z')
> Out[2]: (x, y, z)
>
> In [3]: v=Matrix(1,2,[x,y])
>
> In [4]: v
> Out[4]: [x, y]
>
> In [5]: v/z
> Out[5]: [x/z, y/z]
>
> Thats ok, but
>
> In [6]: from __future__ import division
>
> In [7]: v/z
> ---------------------------------------------------------------------------
> <type 'exceptions.TypeError'> Traceback (most recent call last)
>
> /home/friedrich/<ipython console> in <module>()
>
> <type 'exceptions.TypeError'>: unsupported operand type(s) for /: 'Matrix'
> and 'Symbol'
>
> In [8]: v*(1/z)
> Out[8]: [x/z, y/z]
>
> this is not so ideal.
Yes, I just noticed the same problem when playing with your inversion
code. Please start a an issue for this, it's a bug.
Ondrej
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