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

MATLAB lu

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

Contents

  1. MATLAB lu
    1. Usage

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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MATLAB/Lu (last edited 2026-02-07 04:39:56 by DominicRicottone)