s = input('Please enter the first summation limit: ');
t = input('Please enter the second summation limit: ');

result = DoubleSum(s,t)

function summationResult = DoubleSum(s, t)
summationResult= 0;

for i=1:s
    for j=1:t
        summationResult = summationResult + (i * j);
    end
end
end