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- %LU Factors from Gaussian elimination.
- % [L,U] = LU(X) stores a upper triangular matrix in U and a
- % "psychologically lower triangular matrix", i.e. a product
- % of lower triangular and permutation matrices, in L , so
- % that X = L*U.
- %
- % [L,U,P] = LU(X) returns lower triangular matrix L, upper
- % triangular matrix U, and permutation matrix P so that
- % P*X = L*U.
- %
- % By itself, LU(X) returns the output from LINPACK'S ZGEFA routine.
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- % Copyright (c) 1984-93 by The MathWorks, Inc.
- % Built-in function.
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