MATLAB: How to invert parts of a matrix

inverse of submatrix

Hi!

I have column vector A = [1 2 3 4 5 6 7 8 9]'. From A, I want to get to B = [1 2 3; 4 5 6; 7 8 9] by inverting the relevant subvectors of A. How can I do that?

Filippos

Best Answer

out=reshape(A,3,3)'

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MATLAB: QUESTION ON MATRIX RESHAPING

a = reshape(1:9,3,[])';
out = kron(a,ones(3));

out = repelem(A,3,3)

MATLAB: Repeat parts of a matrix

This should work

B = [1 2; 3 4; 1 2; 3 4; 5 6; 7 8; 5 6; 7 8; 9 10; 11 12; 9 10; 11 12];
A = [1 2; 3 4 ; 5 6; 7 8; 9 10; 11 12];
C=reshape(A',4,3);
C=[C;C];
C=reshape(C,2,12);
C=C';

Best Answer

Related Solutions

MATLAB: QUESTION ON MATRIX RESHAPING

MATLAB: Repeat parts of a matrix

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