W3C home > Mailing lists > Public > www-math@w3.org > July 2003

Re: correct/simplify Content MathML

From: Stan Devitt <jsdevitt@stratumtek.com>
Date: Tue, 08 Jul 2003 10:55:16 -0400
Message-ID: <3F0ADB54.6070309@stratumtek.com>
To: Ana Skupch <anaskupch@cecilija.zesoi.fer.hr>
CC: www-math@w3.org

A very natural thing to do is to write a small library of functions in 
Maple or Mathematica
such as, for example   Plus  := proc(a,b) a + b  end;  and then use your 
write  Plus(a,b) instead of a+b.

Also, both systems import MathML and so can be used to re-write it after 
importing the
original XML expression.

I would not try to write an algebraic simplifier in XSLT since in 
priniciple this is as hard as
writing an algebra system and it is probably the wrong implementation 
language - but you
already seem to be on the track of using the right tools anyway.  :-)

Stan Devitt

Ana Skupch wrote:

>I'm looking for a way to correct/simplify mathematical expressions encoded in MathML. (content)
>The program I'm working on, should be able for example to make no difference between "x+2" and "x+1+1" and if possible also between "sin2x" and "2cosxsinx".
>For this I have been trying to find a program or an XSLT that converts MathML into other kind of mathematical markup so that I can process it afterwards. 
>for example convert
>   <apply>
>      <plus/>
>      <ci>x</ci>
>      <cn>2</cn>
>   </apply>
>into (x+2) 
>But I haven't found anything!
>I thought of writing an XSL for myself, but I would need to convert prefix (from MathML) to infix notation and this seems pretty difficult to me. 
>These are things, that Mathematica and Maple can do. But how?
>Any idea?
Received on Tuesday, 8 July 2003 10:53:14 UTC

This archive was generated by hypermail 2.3.1 : Tuesday, 6 January 2015 21:27:34 UTC