What numerical method is implemented by the code listed below (be specific).

1 2 3 4 5 6 7 8 9 10 11 function out = problem2_75 n= size (A, 1); for k=1:n-1 for i=k+1:n m=A (i, k)/A (k, k); for j=k+1:n end end A(i, j)=A(i, j)-m*A (k, j); end out= A;