Check out example codes for "matlab length of array". It will help you in understanding the concepts better.

Code Example 1

% To get the size of an array, use 'size()' A = [1, 2, 3, 4; 4, 5, 6, 7]; s = size(A); % [2, 4]  % You can pick a specific dimension s = size(A, 2); % 4

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