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Topic: MapleV: substitution in linalg problem
Replies: 1   Last Post: Dec 6, 1996 1:59 AM

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Meinrad Rohner

Posts: 1
Registered: 12/8/04
MapleV: substitution in linalg problem
Posted: Dec 5, 1996 11:57 AM
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I can't figure out how to substitute values for the t-parameters in
the solution of the following problem.
Many thanks in advance for any hints.

> with(linalg):
# Let's say we have the following (singular) matrix:
> A:=matrix(2,2,[-4,3,8,-6]);

[-4 3]
A := [ ]
[ 8 -6]

# I solve for solutions of the homogenous system A*x=0:
> x:=linsolve(A,vector(2,[0,0]),'r',t);

x := [t[1], 4/3 t[1]]

# I simply want to substitute certain integer values into this
# vector. How do I achieve this? For example, the following procedure
# does not give me what I want:
> evalm(subs(t[1]=2,x));

[t[1], 4/3 t[1]]

Meinrad Rohner phone +49-69-798-22762
J. W. Goethe University fax +49-69-798-28130
Department of Economics
Fach 62
D-60054 Frankfurt am Main / Germany

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