Re: Why not expected result for Inverse[] ?
- To: mathgroup at smc.vnet.net
- Subject: [mg40544] Re: [mg40533] Why not expected result for Inverse[] ?
- From: "Y.A.Tesiram" <yas at pcomm.hfi.unimelb.edu.au>
- Date: Wed, 9 Apr 2003 20:28:01 -0400 (EDT)
- Sender: owner-wri-mathgroup at wolfram.com
Pretty hard to understand why if you have defined z. Inverse[%] operates on the output of the previous calculation. Unless you have explicitly stated that z = k - w^2*m, then z has no value and Inverse[z] is exactly that, Inverse[z]. Yas 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 > >