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function x = mexlusolve(A,b,Pcol)
% MEXLUSOLVE : Supernodal LU factor-and-solve.
%
% MEXLUSOLVE is the mex-file version of the supernodal solver.
% The user will normally call LUSOLVE, which calls MEXLUSOLVE.
% See LUSOLVE for a description of parameters.
% Above is the text for HELP MEXLUSOLVE; the following will be executed
% only if the mex-file appropriate for the machine can't be found.
disp('Warning: Executable mexlusolve.mex not found for this architecture.');
disp('The supernodal LU package seems not to be installed (or built for Matlab).');
x = zeros(size(A,2),1);
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