create a function that calculates the gcd between 2 numbers in matlab

main.m
function [output] = calculateGCD(a,b)
% This function calculates the greatest common divisor (GCD) between two numbers
% Inputs:
%     a: an integer number
%     b: an integer number
% Output:
%     output: the GCD between a and b

% Calculate the remainder of a/b
r = rem(a,b);

% If the remainder is zero, the GCD is b
if r == 0
    output = b;
else
    % Recursively call the function with b as the first argument and r
    % as the second argument
    output = calculateGCD(b,r);
end

end
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main.m
result = calculateGCD(10,15);
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