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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;
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