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Re: Re: Non-commutative algebra

• To: mathgroup at smc.vnet.net
• Subject: [mg13365] Re: [mg13280] Re: Non-commutative algebra
• From: MJE <evans.nospam at gte.net>
• Date: Mon, 20 Jul 1998 02:50:18 -0400
• Organization: None
• References: <199807180756.QAA18323@soda3.bekkoame.or.jp>
• Sender: owner-wri-mathgroup at wolfram.com

Andrzej Kozlowski wrote:
> 
> external package. The only convenient mechanism would seem to be the one
> mentioned by David Withoff as a possible direction of future development:
> that is, one would want built in functions either to switch to
> non-commutative algorithms when applied to non-commutative expressions or at
> least do nothing, rather than  mess up everything, as they tend to do now.
> Andrzej
> 

This is in fact the big difference between Wolfram-supported packages
and the rest of us.  When WRI makes a package, the kernel can change
along with it.  The rest of us can't pull that off.  For something as
fundamental as matrix math I would say, it's Wolfram's job.

I've looked at NCAlgebra before but in my case I don't recall that it
was explicitly a matrix package.  I need that.

Mark