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MATLAB lu

The lu function calculates the LU decomposition of a square matrix.

Contents

Usage

To solve the problem Ax = b for a square A, try:

[L, U] = lu(A);
y = L \ b;
x = U \ y;

The original A can be returned by L*U.

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-The '''`lu`''' function calculates the [[LinearAlgebra/LUDecomposition|LU decomposition]] of a matrix.
+The '''`lu`''' function calculates the [[LinearAlgebra/LUDecomposition|LU decomposition]] of a square matrix.