Re: pfaffian.input.pamphlet

Martin Rubey <[email protected]> 01 Oct 2007 08:12:14 +0200

Newsgroups	gmane.comp.mathematics.axiom.general,gmane.comp.mathematics.axiom.devel
Message-ID	<[email protected]>

root <[email protected]> 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