Documentation API of the 'org.encog.mathutil.matrices.decomposition.LUDecomposition' Java class
LUDecomposition
org.encog.mathutil.matrices.decomposition

Class LUDecomposition



  • public class LUDecompositionextends Object
    LU Decomposition.

    For an m-by-n matrix A with m >= n, the LU decomposition is an m-by-n unit lower triangular matrix L, an n-by-n upper triangular matrix U, and a permutation vector piv of length m so that A(piv,:) = L*U. If m < n, then L is m-by-m and U is m-by-n.

    The LU decompostion with pivoting always exists, even if the matrix is singular, so the constructor will never fail. The primary use of the LU decomposition is in the solution of square systems of simultaneous linear equations. This will fail if isNonsingular() returns false. This file based on a class from the public domain JAMA package. http://math.nist.gov/javanumerics/jama/

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