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how to compile a matrix whose some elements are matrixes [message #49308]

Fri, 14 July 2006 00:11

haojuanchina@gmail.co is currently offline

haojuanchina@gmail.co
Messages: 3
Registered: July 2006

Junior Member

Hello,everyone
I want obtain a matric whose some elements are matrixes, how to compile

the program?
example: I want to abtain the following matrix
G I 0 0 0 0 0
I G I 0 0 0 0
0 I G I 0 0 0
0 0 I G I 0 0
0 0 0 I G I 0
0 0 0 0 I G I
0 0 0 0 0 I G
in which I is an identity matrix,
1 0 0 0 0 0 0
0 1 0 0 0 0 0
0 0 1 0 0 0 0
0 0 0 1 0 0 0
0 0 0 0 1 0 0
0 0 0 0 0 1 0
0 0 0 0 0 0 1
and G is a similar diagonal matrix:
1 2 0 0 0 0 0
2 1 2 0 0 0 0
0 2 1 2 0 0 0
0 0 2 1 2 0 0
0 0 0 2 1 2 0
0 0 0 0 2 1 2
0 0 0 0 0 2 1
I can compile the program of the matrix G and I:
PRO Matrix

diag =findgen(7)
sub=findgen(6)
super=findgen(6)

diag[0:6]=1
sub[0:5]=2
super[0:5]=2

G = DIAG_MATRIX(diag) + $
DIAG_MATRIX(super, 1) + DIAG_MATRIX(sub, -1)
G[0,1:5]=2
G[1:5,0]=2
print,G

I= identity(7)
print,I

END

but how to get the first matrix in which include the matrix G and I?
The difficulty is that I can not compile the diagonal elements (the
smaller matrixes) of the larger matrix. How should I do?
Thanks!
Juan Hao

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[Message index]

		how to compile a matrix whose some elements are matrixes By: haojuanchina@gmail.co on Fri, 14 July 2006 00:11
		Re: how to compile a matrix whose some elements are matrixes By: Jean H. on Fri, 14 July 2006 09:34

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