- <init>
Calculates the LU-decomposition of the given matrix.

- getSolver
Get a solver for finding the A × X = B solution in exact linear sense.

- getDeterminant
Return the determinant of the matrix

- getL
Returns the matrix L of the decomposition.L is a lower-triangular matrix

- getP
Returns the P rows permutation matrix.P is a sparse matrix with exactly one
element set to 1.0 in ea

- getU
Returns the matrix U of the decomposition.U is an upper-triangular matrix

- getPivot
Returns the pivot permutation vector.