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Re: redefine Power[A_?MatrixQ,-1]

• To: mathgroup at smc.vnet.net
• Subject: [mg32645] Re: redefine Power[A_?MatrixQ,-1]
• From: Alan Lewis <alanlewis at optioncity.net>
• Date: Fri, 1 Feb 2002 02:03:10 -0500 (EST)
• References: <a3ap6u$48c$1@smc.vnet.net>
• Sender: owner-wri-mathgroup at wolfram.com

Perhaps you can just use MatrixPower[A,-1] instead?

Cyril Fischer wrote:

> Hi,
> How can I redefine Power[A_?MatrixQ,-1] := Inverse[A] ?
> 
> Issuing
> Unprotect[Power];
> Power[A_?MatrixQ,-1] := Inverse[A]
> 
> does not work.
> Thanks, Cyril
> 
> 
>