LAPACK 3.12.0
LAPACK: Linear Algebra PACKage

Functions  
subroutine  ctplqt2 (m, n, l, a, lda, b, ldb, t, ldt, info) 
CTPLQT2  
subroutine  dtplqt2 (m, n, l, a, lda, b, ldb, t, ldt, info) 
DTPLQT2 computes a LQ factorization of a real or complex "triangularpentagonal" matrix, which is composed of a triangular block and a pentagonal block, using the compact WY representation for Q.  
subroutine  stplqt2 (m, n, l, a, lda, b, ldb, t, ldt, info) 
STPLQT2 computes a LQ factorization of a real or complex "triangularpentagonal" matrix, which is composed of a triangular block and a pentagonal block, using the compact WY representation for Q.  
subroutine  ztplqt2 (m, n, l, a, lda, b, ldb, t, ldt, info) 
ZTPLQT2 computes a LQ factorization of a real or complex "triangularpentagonal" matrix, which is composed of a triangular block and a pentagonal block, using the compact WY representation for Q.  