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 > >