Multidimensional Array Matlab

An array possessing more than two dimensions is called a multidimensional array in MATLAB. Multidimensional arrays in MATLAB are the extension of the normal two-dimensional matrix. Generally to generate a multidimensional array, user should create a two-dimensional array and extend it. This is further explained with the following example: a = [7 9 5; 6 1 9; 4 3 2]

MATLAB will compile the above statement and return the following result − a = 7 9 5 6 1 9 4 3 2 The array a is a 3-by-3 array; a third dimension can be added to a, by providing the values like − a(:, :, 2)= [ 1 2 3; 4 5 6; 7 8 9] MATLAB will compile the above statement and return the result in this form − a = ans(:,:,1) = 0 0 0 0 0 0 0 0 0 ans(:,:,2) = 1 2 3 4 5 6 7 8 9

Multidimensional arrays can be created using the ones(), zeros() or the rand() functions. For example, b = rand(4,3,2) MATLAB will execute the above statement in this way − b(:,:,1) = 0.0344 0.7952 0.6463 0.4387 0.1869 0.7094 0.3816 0.4898 0.7547 0.7655 0.4456 0.2760 b(:,:,2) = 0.6797 0.4984 0.2238 0.6551 0.9597 0.7513 0.1626 0.3404 0.2551 0.1190 0.5853 0.5060 The cat() function can be to build multidimensional arrays. It joins a list of arrays along a specified dimension − Syntax for the cat() function is − B = cat(dim, A1, A2...) Where, B is the new array created A1, A2, ... are the arrays to be concatenated in MATLAB dim is the dimension along which user want to concatenate the arrays