Matrix.LUDecomposition(Matrix, Matrix, Matrix) Method

Syntax

myMatrix1.LUDecomposition(myMatrix2, myMatrix3, myMatrix4);

This example shows how to calculate the LU decomposition of a Matrix m such that P*m = L*U.

Matrix m;

Matrix L;///Lower Triangle Matrix

Matrix U;///Upper Triangle Matrix

Matrix P;///Permutation Matrix

m = [ 0.614657855, 2.230410762, -1.936267214;

-4.821711665, 3.296403963, 2.476141336;

-0.825844972, 3.920154337, -0.624599538 ];

m.LUDecomposition(L, U, P);

Report L, U, P;

Output report:

L = 1.000000000 0.000000000 0.000000000

0.171276308 1.000000000 0.000000000

-0.127477107 0.789921217 1.000000000

U = -4.821711665 3.296403963 2.476141336

0.000000000 3.355558437 -1.048703884

0.000000000 0.000000000 -0.792222431

P = 0.000000000 1.000000000 0.000000000

0.000000000 0.000000000 1.000000000

1.000000000 0.000000000 0.000000000

Description