ZLARFX(3)

🌸 NAME 🌸

okay so bestie, this is the zlarfx(3) page — Library Functions Manual energy, and the “name” is literally this file path: /home/abuild/rpmbuild/BUILD/lapack-static-3.12.0-build/lapack-3.12.0/SRC/zlarfx.f. That’s it. That’s the name. 💅

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✨ SYNOPSIS ✨

🧚 Functions/Subroutines 🧚

   Functions/Subroutines
       subroutine ZLARFX (side, m, n, v, tau, c, ldc, work)
           ZLARFX applies an elementary reflector to a general rectangular
           matrix, with loop unrolling when the reflector has order ≤ 10.

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💅 Function/Subroutine Documentation 💅

   subroutine ZLARFX (character side, integer m, integer n, complex*16,
       dimension( * ) v, complex*16 tau, complex*16, dimension( ldc, * ) c,
       integer ldc, complex*16, dimension( * ) work)

ZLARFX applies an elementary reflector to a general rectangular matrix, with loop unrolling when the reflector has order ≤ 10. periodt. 🌈

🎀 Purpose 🎀

okay so here’s the whole vibe, bestie: ZLARFX applies a complex elementary reflector H to a complex m by n matrix C, from either the left or the right. H is represented in the form:

H = I - tau * v * v**H

where tau is a complex scalar and v is a complex vector. 🦋

If tau = 0, then H is taken to be the unit matrix. No cap.

This version uses inline code if H has order < 11. ⭐

🫶 Parameters 🫶

• SIDE — SIDE is CHARACTER*1
  • = 'L': form H * C
  • = 'R': form C * H
• M — M is INTEGER; the number of rows of the matrix C.
• N — N is INTEGER; the number of columns of the matrix C.
• V — V is COMPLEX*16 array, dimension (M) if SIDE = 'L' or (N) if SIDE = 'R'; the vector v in the representation of H.
• TAU — TAU is COMPLEX*16; the value tau in the representation of H.
• C — C is COMPLEX*16 array, dimension (LDC,N); on entry, the m by n matrix C. On exit, C is overwritten by the matrix H * C if SIDE = 'L', or C * H if SIDE = 'R'.
• LDC — LDC is INTEGER; the leading dimension of the array C. LDC >= max(1,M).
• WORK — WORK is COMPLEX*16 array, dimension (N) if SIDE = 'L' or (M) if SIDE = 'R'; WORK is not referenced if H has order < 11.

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👑 Author 👑

• Univ. of Tennessee
• Univ. of California Berkeley
• Univ. of Colorado Denver
• NAG Ltd.

Definition at line 118 of file zlarfx.f.

👑 Author 👑

Generated automatically by Doxygen for LAPACK from the source code.

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bye bestie 🫶 this page signs off from LAPACK Version 3.12.0 at /home/abui...RC/zlarfx.f(3) — there’s no separate date in the footer, just the version + path vibe, and that’s the whole sign-off. 💖✨