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