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[Axiom-math] Re: pfaffian.input.pamphlet

From: Martin Rubey
Subject: [Axiom-math] Re: pfaffian.input.pamphlet
Date: 01 Oct 2007 08:12:14 +0200
User-agent: Gnus/5.09 (Gnus v5.9.0) Emacs/21.4 
root <address@hidden> writes:

> Martin,
> 
> I've been writing some pfaffian examples. Should the PfChar code read:
> 
> PfChar(lambda, A) ==
>   n := nrows A
> 
> PfChar(lambda, A) ==
>   n := nrows A
>   odd? n => 0

I didn't check for odd n since I didn't check for skew-symmetry either.  Yes,
one should, in a production environment.

Martin
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