Function `Dune::XT::LA::qr`¶

template<class MatrixType, class VectorType, class IndexVectorType> int Dune::XT::LA::qr(MatrixType &A, VectorType &tau, IndexVectorType &permutations)¶

Performs a QR factorization with pivoting AP = QR. The matrix A is overwritten with QR, additional multipliers are stored in tau and the permutations are stored in permutations.