ULU

Purpose:

Computes an upper triangular table in LU decomposition.

ULU(a)

A square matrix.

A matrix.

x = {{1, 2, 3},

{4, 5, 6},

{7, 8, 10}}

ulu(x) = {{7.000, 8.000, 10.000},

{0.000, 0.8571, 1.571},

{0.000, 0.000, -0.5}}

For the LU decomposition of a square matrix A:

A = llu(A) *^ ulu(A)

also:

A = lu(A, 0, 1) *^ lu(A, 1, 1)

See LU for a further discussion of LU decomposition.