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Re: [Axiom-mail] A question about Axiom capabilities, Fwd: [fricas-devel


From: Ralf Hemmecke
Subject: Re: [Axiom-mail] A question about Axiom capabilities, Fwd: [fricas-devel] Abstract Vector Algebra
Date: Sat, 30 Mar 2013 13:01:47 +0100
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130308 Thunderbird/17.0.4

> It would be really nice if one could write an equation solver for a
> given algebra, I have often wanted to do that and I wonder if there is
> any general advise on this topic for Axiom?

Well, would be nice, but think about the following. An algebra, which is
a field. Depending on which equations you want to solve, there is need
for completely different algorithms. Solve (ax+by=c,dx+ey=f) for x and y
or ax^2+bx+c=0 for x.
Add a new operation (diferentiation) making the algebra into a
differential field, there are even more ways to come up with equations.

Unless you specify what solver you intend to write, it's probably an
unsolvable task to write a general solver that works for all types of
algebras.

Ralf



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