LAPACK 3.12.0
LAPACK: Linear Algebra PACKage

Functions  
subroutine  cungr2 (m, n, k, a, lda, tau, work, info) 
CUNGR2 generates all or part of the unitary matrix Q from an RQ factorization determined by cgerqf (unblocked algorithm).  
subroutine  dorgr2 (m, n, k, a, lda, tau, work, info) 
DORGR2 generates all or part of the orthogonal matrix Q from an RQ factorization determined by sgerqf (unblocked algorithm).  
subroutine  sorgr2 (m, n, k, a, lda, tau, work, info) 
SORGR2 generates all or part of the orthogonal matrix Q from an RQ factorization determined by sgerqf (unblocked algorithm).  
subroutine  zungr2 (m, n, k, a, lda, tau, work, info) 
ZUNGR2 generates all or part of the unitary matrix Q from an RQ factorization determined by cgerqf (unblocked algorithm).  