LAPACK 3.12.0
LAPACK: Linear Algebra PACKage

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Functions/Subroutines  
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.  