LAPACK 3.12.0
LAPACK: Linear Algebra PACKage

Functions  
subroutine  cgerq2 (m, n, a, lda, tau, work, info) 
CGERQ2 computes the RQ factorization of a general rectangular matrix using an unblocked algorithm.  
subroutine  dgerq2 (m, n, a, lda, tau, work, info) 
DGERQ2 computes the RQ factorization of a general rectangular matrix using an unblocked algorithm.  
subroutine  sgerq2 (m, n, a, lda, tau, work, info) 
SGERQ2 computes the RQ factorization of a general rectangular matrix using an unblocked algorithm.  
subroutine  zgerq2 (m, n, a, lda, tau, work, info) 
ZGERQ2 computes the RQ factorization of a general rectangular matrix using an unblocked algorithm.  