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function [out1, out2, out3, out4, out5] = umfpack (in1, in2, in3, in4, in5)
% UMFPACK v4.4 is a MATLAB mexFunction for solving sparse linear systems.
%
% UMFPACK v4.4: | MATLAB approximate equivalent:
% ---------------------------------------------------------------------
% x = umfpack (A, '\', b) ; | x = A \ b
% |
% x = umfpack (b, '/', A) ; | x = b / A
% |
% [L,U,P,Q] = umfpack (A) ; | [m,n] = size (A) ;
% | I = speye (n) ;
% | Q = I (:, colamd (A)) ;
% | [L,U,P] = lu (A*Q) ;
% |
% [L,U,P,Q,R] = umfpack (A) ; | [m,n] = size (A) ;
% | I = speye (n) ;
% | Q = I (:, colamd (A)) ;
% | r = full (sum (abs (A), 2)) ;
% | r (find (r == 0)) = 1 ;
% | R = spdiags (r, 0, m, m) ;
% | [L,U,P] = lu ((R\A)*Q) ;
% |
% [P,Q,F,C] = umfpack (A, 'symbolic') | [m,n] = size (A) ;
% | I = speye (n) ;
% | Q = I (:, colamd (A)) ;
% | [count,h,parent,post] = ...
% | symbfact (A*Q, 'col') ;
%
% A must be sparse. It can be complex, singular, and/or rectangular. A must be
% square for '/' or '\'. b must be a full real or complex vector. For
% [L,U,P,Q,R] = umfpack (A), the factorization is L*U = P*(R\A)*Q. If A has a
% mostly symmetric nonzero pattern, then replace "colamd" with "amd" in the
% MATLAB-equivalent column in the table above. Type umfpack_details for more
% information.
%
% See also: lu_normest, colamd, amd.
% To use UMFPACK for an arbitrary b, see umfpack_solve.
% UMFPACK Version 4.4, Copyright (c) 2005 by Timothy A. Davis.
% All Rights Reserved. Type umfpack_details for License.
help umfpack
error ('umfpack mexFunction not found! Use umfpack_make to compile umfpack.') ;
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