CLAQZ1(3)

🦋 CLAQZ1(3) — the claqz1.f era 💅

ok so bestie, you opened the manual page for /home/abui...RC/claqz1.f(3) — that's claqz1.f, section 3 of the LAPACK library functions manual. she's a Fortran source file from LAPACK, and she's about to get very specific about chasing a bulge. yes really. a bulge. stay with me ✨

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✨ NAME ✨

/home/abuild/rpmbuild/BUILD/lapack-static-3.12.0-build/lapack-3.12.0/SRC/claqz1.f

like, that's literally her whole address 🏠 no notes, that's the NAME section, that's what it is.

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🌸 SYNOPSIS 🌸

Functions/Subroutines

subroutine CLAQZ1 (ilq, ilz, k, istartm, istopm, ihi, a, lda, b, ldb,
    nq, qstart, q, ldq, nz, zstart, z, ldz)

CLAQZ1 — that's her 💅

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👑 Function/Subroutine Documentation 👑

subroutine CLAQZ1 (logical, intent(in) ilq, logical, intent(in) ilz,
    integer, intent(in) k, integer, intent(in) istartm, integer, intent(in)
    istopm, integer, intent(in) ihi, complex, dimension( lda, * ) a,
    integer, intent(in) lda, complex, dimension( ldb, * ) b, integer,
    intent(in) ldb, integer, intent(in) nq, integer, intent(in) qstart,
    complex, dimension( ldq, * ) q, integer, intent(in) ldq, integer,
    intent(in) nz, integer, intent(in) zstart, complex, dimension( ldz, * )
    z, integer, intent(in) ldz)

CLAQZ1

🎯 Purpose

!> !> CLAQZ1 chases a 1x1 shift bulge in a matrix pencil down a single position !>

ok so the whole personality: she chases a 1x1 shift bulge in a matrix pencil down a single position. one position. that's the job. she does it and she does it well, no cap 🫶

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💖 Parameters 💖

• ILQ — ILQ is LOGICAL. Determines whether or not to update the matrix Q ✨
• ILZ — ILZ is LOGICAL. Determines whether or not to update the matrix Z 🦋
• K — K is INTEGER. Index indicating the position of the bulge. On entry, the bulge is located in (A(k+1,k),B(k+1,k)). On exit, the bulge is located in (A(k+2,k+1),B(k+2,k+1)). she moves. that's the whole slay 🔥
• ISTARTM — ISTARTM is INTEGER
• ISTOPM — ISTOPM is INTEGER. Updates to (A,B) are restricted to (istartm:k+2,k:istopm). It is assumed without checking that istartm <= k+1 and k+2 <= istopm. ⚠️ like, the routine is trusting you on this one, bestie — no vibe check performed, so don't come crying 😭
• IHI — IHI is INTEGER
• A — A is COMPLEX array, dimension (LDA,N)
• LDA — LDA is INTEGER. The leading dimension of A as declared in the calling procedure 💜
• B — B is COMPLEX array, dimension (LDB,N)
• LDB — LDB is INTEGER. The leading dimension of B as declared in the calling procedure 💜
• NQ — NQ is INTEGER. The order of the matrix Q 🎀
• QSTART — QSTART is INTEGER. Start index of the matrix Q. Rotations are applied To columns k+2-qStart:k+3-qStart of Q.
• Q — Q is COMPLEX array, dimension (LDQ,NQ)
• LDQ — LDQ is INTEGER. The leading dimension of Q as declared in the calling procedure 💜
• NZ — NZ is INTEGER. The order of the matrix Z 🎀
• ZSTART — ZSTART is INTEGER. Start index of the matrix Z. Rotations are applied To columns k+1-qStart:k+2-qStart of Z.
• Z — Z is COMPLEX array, dimension (LDZ,NZ)
• LDZ — LDZ is INTEGER. The leading dimension of Q as declared in the calling procedure 💜 (yes she says Q here. we're not fixing it, we're reporting it 🙈 icon behaviour honestly)

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🌈 Author

Thijs Steel, KU Leuven 👑

⭐ Date

May 2020

🔍 Definition at line 171 of file claqz1.f.

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🧚 Author (the doxygen one)

Generated automatically by Doxygen for LAPACK from the source code. she was built by a robot and she's still serving 💅

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ok that's the whole page bestie, you're officially fluent 🎓

LAPACK, Version 3.12.0, dated /home/abui...RC/claqz1.f(3) — mwah, bye, go chase a bulge responsibly 💖🌸✨