extendr_api::prelude::modules::qr::col_pivoting::inverse

Function invert

pub fn invert<I, E>(
    dst: MatMut<'_, E>,
    qr_factors: MatRef<'_, E>,
    householder_factor: MatRef<'_, E>,
    col_perm: PermRef<'_, I>,
    parallelism: Parallelism<'_>,
    stack: PodStack<'_>,
)where
    I: Index,
    E: ComplexField,

Expand description

Computes the inverse of a matrix, given its QR decomposition with column pivoting, and stores the result in dst.

§Panics

Panics if qr_factors is not a square matrix.
Panics if the number of columns of householder_factor isn’t the same as the minimum of the number of rows and the number of columns of qr_factors.
Panics if the block size is zero.
Panics if col_perm doesn’t have the same dimension as qr_factors.
Panics if dst doesn’t have the same shape as qr_factors.
Panics if the provided memory in stack is insufficient (see invert_req).