lu

abstract fun Tensor<T>.lu(): Triple<Tensor<T>, Tensor<T>, Tensor<T>>

LUP decomposition

Computes the LUP decomposition of a matrix or a batch of matrices. Given a tensor input, return tensors (P, L, U) satisfying P dot input = L dot U, with P being a permutation matrix or batch of matrices, L being a lower triangular matrix or batch of matrices, U being an upper triangular matrix or batch of matrices.

Return

triple of P, L and U tensors

Sources

common source