function [L,U,prow,pcol] = mexsuperlu(A,psparse);

% MEXSUPERLU : Supernodal LU factorization

%

%  MEXSUPERLU is the mex-file version of the supernodal factorization.

%  The user will normally call SUPERLU, which calls MEXSUPERLU.

%  See SUPERLU for a description of parameters.

% Above is the text for HELP MEXSUPERLU; the following will be executed 

% only if the mex-file appropriate for the machine can't be found.

disp('Warning:  Executable mexsuperlu.mex not found for this architecture.');

disp('The supernodal LU package seems not to be installed for Matlab.');

n = max(size(A));

L = sparse(n,n);

U = sparse(n,n);

prow = 1:n;

pcol = 1:n;