function that takes as input an array and prints out the product of array in matlab

main.m
function out = arrayProduct(arr)
% ARRAYPRODUCT computes the product of an array
% Inputs:
%   arr: a numeric array
% Output:
%   out: the product of the array elements
out = 1;
for i = 1:numel(arr)
    out = out * arr(i);
end
fprintf('The product is: %d\n', out);
end
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main.m
>> myArr = [2, 3, 4, 5];
>> arrayProduct(myArr)
The product is: 120
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