XLPack 6.1
C/C++ API Reference Manual
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Functions
D5. QR factorization

Functions

void _dgelqf (int m, int n, int lda, double a[], double tau[], double work[], int lwork, int *info)
 LQ factorization
 
void _dgeqp3 (int m, int n, int lda, double a[], int jpvt[], double tau[], double work[], int lwork, int *info)
 QR factorization with pivoting
 
void _dgeqrf (int m, int n, int lda, double a[], double tau[], double work[], int lwork, int *info)
 QR factorization
 
void _dorglq (int m, int n, int k, int lda, double a[], double tau[], double work[], int lwork, int *info)
 Generates matrix Q of LQ factorization
 
void _dorgqr (int m, int n, int k, int lda, double a[], double tau[], double work[], int lwork, int *info)
 Generates matrix Q of QR factorization
 
void _dormlq (char side, char trans, int m, int n, int k, int lda, double a[], double tau[], int ldc, double c[], double work[], int lwork, int *info)
 Multiplies matrix by Q of LQ factorization
 
void _dormqr (char side, char trans, int m, int n, int k, int lda, double a[], double tau[], int ldc, double c[], double work[], int lwork, int *info)
 Multiplies matrix by Q of QR factorization
 

Detailed Description

This is the group of D5. QR factorization.