MATLAB: How can i rotate an N-dimensional matrix

axismatrixrotate

hi all i am having trouble with project and need to figure out how i can rotate an N-dimensional matrix so that i can 'look in from the side'. ie rotate the matrix around a virtical axis. see attached image for discription.

Best Answer

A = cat(3,[1 2 3;4 5 6;7 8 9],[10 11 12;13 14 15;16 17 18])
out = permute(A,[3,1,2]);

Please read about function permute.

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MATLAB: Reshape 3d matrix to obtain a column vector

A(:,:,1) = [1 2 3; 4 5 6; 7 8 9]
A(:,:,2) = [10 11 12; 13 14 15; 16 17 18]
A(:,:,3) = [19 20 21; 22 23 24; 25 26 27]
B=permute(A,[2 1 3])
out=B(:)

MATLAB: How to swap rows of a matrix using command linalg::swapRow(A, 1, 2)

feval(symengine, 'linalg::swapRow', A, 1, 2)

The output of this will be a symbolic matrix. If your matrix is numeric, then you should double() the result of the feval() to get back to numeric.

However... unless you are poking into the MuPAD engine, you are better off writing a small function:

function A = swapRow(A, row1, row2)
  A([row2, row1], :) = A([row1, row2], :);

Best Answer

Related Solutions

MATLAB: Reshape 3d matrix to obtain a column vector

MATLAB: How to swap rows of a matrix using command linalg::swapRow(A, 1, 2)

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