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Re: Why not expected result for Inverse[] ?

  • To: mathgroup at smc.vnet.net
  • Subject: [mg40550] Re: [mg40533] Why not expected result for Inverse[] ?
  • From: SONKOLY Pal <phaul at inf.elte.hu>
  • Date: Thu, 10 Apr 2003 03:36:32 -0400 (EDT)
  • Sender: owner-wri-mathgroup at wolfram.com

Perhaps you didnt define the z matrix, try ??z. The previous result
(%) was that matrix, that you want but it couldnt be z, couse you
got two different result for Inverse[z] and Inverse[%]. Otherwise try
Clear[z]. To define a variable/ matrix etc. use = If you used Rule/
RuleDelayed -> :> ... it doesnt assign the variable with the value.

Phaul

On Wed, 9 Apr 2003 twm145 at psu.edu wrote:

> I define two 2X2 square matrices, m & k
> Then define a z matrix, [k]-w^2*[m]
>
> Why does Inverse[z], not give inverse, just gives output as   Inverse[z]
>
> instead I have to use Inverse[%]
>
> Does'nt make sense to me. Help me understand please.
>
> Tom
>
>



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