Module extendr_api::prelude::modules::qr::col_pivoting::compute

Computing the decomposition.

Structs

• ColPivQrComputeParams
  QR factorization tuning parameters.
• ColPivQrInfo
  Information about the resulting QR factorization.

Functions

• qr_in_place
  Computes the QR decomposition with pivoting of a rectangular matrix $A$, into a unitary matrix $Q$, represented as a block Householder sequence, and an upper trapezoidal matrix $R$, such that $$AP^\top = QR.$$
• qr_in_place_req
  Computes the size and alignment of required workspace for performing a QR decomposition with column pivoting.
• recommended_blocksize
  The recommended block size to use for a QR decomposition of a matrix with the given shape.