Re: out of memory, again
- To: mathgroup at smc.vnet.net
- Subject: [mg27492] Re: [mg27473] out of memory, again
- From: Roberto Brambilla <rlbrambilla at cesi.it>
- Date: Thu, 1 Mar 2001 03:53:18 -0500 (EST)
- Sender: owner-wri-mathgroup at wolfram.com
Hi, Ivan,
I've calculated your real-eigenvector (corresponding to
eigenvalue 1) considering the reduced system 2x2
(m11-1)u + (m12)v = -m13
(m21)u + (m22-1)v = -m23
where m is your marix and mij its elements.
The non-normalized eigenvector is simply
e={u,v,1}= {Tan[p]Tan[q/2], Tan[p], 1}
To normalize divide each component of e by
the norm=Sqrt[e.e]
norm=Sqrt[1+Sec[q/2]^2 Tan[p]^2].
I have numerically compared this solution with the
numerical solution of the complete system and it works.
Bye, Roberto
Roberto Brambilla
CESI
Via Rubattino 54
20134 Milano
tel +39.2.2125.5875
fax +39.2.2125.610
rlbrambilla at cesi.it