Function only computing first element of array used as input

I am trying to use a MATLAB function to generate a plot for the function : As such I am using the linspace function to generate an input array that I then aim to give to the function i wrote to get data to be plotted. But the function only processes the first element of the Array generated by linspace. The function appears to work correctly for singular values but not for arrays.     function S = FXSUM(x) Tot = 0; % reset Total for n = 2:x % for loop for Function Summs at a iterations it = (1/(n*((log(n))^2))); % provided function Tot = Tot + it % sum of function iterations end S = Tot; % Out value equal to function iterrations total end