qr()

template<typename EigMat , require_eigen_t< EigMat > * = nullptr>

std::tuple< Eigen::Matrix< value_type_t< EigMat >, Eigen::Dynamic, Eigen::Dynamic >, Eigen::Matrix< value_type_t< EigMat >, Eigen::Dynamic, Eigen::Dynamic > > stan::math::qr

(

const EigMat &

m

)

Returns the fat QR decomposition.

Template Parameters

EigMat

type of the matrix

Parameters

m

Matrix.

Returns

A tuple containing (Q,R):

1. Orthogonal matrix with maximal columns
2. Upper triangular matrix with maximal rows

Definition at line 25 of file qr.hpp.