Module DTZRQF.C in CLAPACKComputes an RQ factorization of a real upper trapezoidal matrix. (Computational routine.). [C version of LAPACK routine, converted from Fortran by f2c.].
int dtzrqf_(integer *m, integer *n, doublereal *a, integer * lda, doublereal *ta u, integer *info)| D5 | QR decomposition, Gram-Schmidt orthogonalization |