find the number of rows of a matrix in matlab

To find the number of rows of a matrix in Matlab, you can use the size function with the second argument set to 1 to represent the number of rows. For example:

A = [1 2 3; 4 5 6; 7 8 9];
numRows = size(A, 1);
disp(numRows);
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Output:

3
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Here, size(A, 1) gives the number of rows of matrix A, which is 3 in this case. We store the output in the variable numRows and then display it using the disp function.

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