1function [L,U] = lu_right (A) 2%LU_RIGHT right-looking LU factorization. 3% Example: 4% [L,U] = lu_right (A) 5% See also: cs_demo 6 7% Copyright 2006-2012, Timothy A. Davis, http://www.suitesparse.com 8 9n = size (A,1) ; 10L = eye (n) ; 11U = zeros (n) ; 12for k = 1:n 13 U (k,k:n) = A (k,k:n) ; % (6.4) and (6.5) 14 L (k+1:n,k) = A (k+1:n,k) / U (k,k) ; % (6.6) 15 A (k+1:n,k+1:n) = A (k+1:n,k+1:n) - L (k+1:n,k) * U (k,k+1:n) ; % (6.7) 16end 17