MATLAB: Does the function give no outputs

Question

function [A]=AccGold()
n = 4;
    while Gold(n)-Gold(n-1) > 0.00000001
       n = n+1;
       A = Gold(n)
    end  
end

I want to find the first value of Gold(n)-Gold(n-1) such that it is < 0.0000001

Answer 1

If the condition is immediately false you never assign to A.