Simplification question



there is actually no reason to expect Maxima to "simplify" an expression to
some arbitrary form that you happen to like;
Maxima has its own particular repertoire of "kinds of simplifications"  and
getting exactly the ordering you want may be contrary to its rules.  On the
other hand, there is a package that tries to come up with a formatting
arrangement that might allow for something like this form. Bruce Miller
wrote it, and it is called format.  e.g. load(format) does it.
documentation?? see http://math.nist.gov/~BMiller/computer-algebra/
 

> -----Original Message-----
> From: maxima-bounces at math.utexas.edu 
> [mailto:maxima-bounces at math.utexas.edu] On Behalf Of Andreas Kranz
> Sent: Tuesday, May 27, 2008 1:08 PM
> To: maxima at math.utexas.edu
> Subject: Simplification question
> 
> Hello,
> 
> as a maxima newbie I've trouble understanding how to achieve 
> a certain 
> transformation.
> 
> Especially I would like the following term:
> 
>   2 vx z - r z - l z - 2 n (x - vx) - 2 vz x + r vz + l vz
> - --------------------------------------------------------
>                            r - l
> 
> to be written as:
> 
> 
> 2(n + vz)      -2 vx    r + l       2 n vx + r vz + l vz
> --------- x + (----- +  -----) z +  --------------------
>   r - l        r - l    r - l              r - l
> 
> 
> probably an easy task for maxima but maybe I'm just to blind 
> to see how 
> to do this.
> I've already experimented with combinations of factorsum, 
> factorout and 
> friends but
> could not work that out.
> 
> Any suggestions?
> 
> Bye,
> 
> Andreas
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