ZLAPMT(3)

💖 NAME 💖

okay so bestie, this is ZLAPMT(3) from the Library Functions Manual — header energy is literally /home/abui...RC/zlapmt.f(3) + Library Functions Manual + /home/abui...RC/zlapmt.f(3), and the main-character file path is /home/abuild/rpmbuild/BUILD/lapack-static-3.12.0-build/lapack-3.12.0/SRC/zlapmt.f. No cap, that's the whole NAME vibe. 🌸

🦋 SYNOPSIS 🦋

🧚 Functions/Subroutines 🧚

• subroutine ZLAPMT (forwrd, m, n, x, ldx, k) — ZLAPMT performs a forward or backward permutation of the columns of a matrix. Slay. 💅

✨ Function/Subroutine Documentation ✨

subroutine ZLAPMT (logical forwrd, integer m, integer n, complex*16, dimension( ldx, * ) x, integer ldx, integer, dimension( * ) k)

ZLAPMT performs a forward or backward permutation of the columns of a matrix. 💅

🎯 Purpose 🎯

okay so the whole point: ZLAPMT rearranges the columns of the M by N matrix X as specified by the permutation K(1),K(2),...,K(N) of the integers 1,...,N. Obsessed with a clear purpose. ✨

If FORWRD = .TRUE., that's the forward permutation:

      X(*,K(J)) is moved X(*,J) for J = 1,2,...,N.

If FORWRD = .FALSE., that's the backward permutation:

      X(*,J) is moved to X(*,K(J)) for J = 1,2,...,N.

🧸 Parameters 🧸

• FORWRD — is LOGICAL; = .TRUE. means forward permutation, = .FALSE. means backward permutation. Vibe check: it decides direction.
• M — is INTEGER; the number of rows of the matrix X; M >= 0, periodt.
• N — is INTEGER; the number of columns of the matrix X; N >= 0.
• X — is COMPLEX*16 array, dimension (LDX,N); on entry, the M by N matrix X; on exit, X contains the permuted matrix X. It's giving glow-up.
• LDX — is INTEGER; the leading dimension of the array X; LDX >= MAX(1,M).
• K — is INTEGER array, dimension (N); on entry, K contains the permutation vector. K is used as internal workspace, but reset to its original value on output. Not me thinking that's polite.

📝 Author 📝

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

Definition at line 103 of file zlapmt.f.

👑 Author 👑

Generated automatically by Doxygen for LAPACK from the source code. Iconic.

---

okay bye bestie 💖 — footer check: LAPACK Version 3.12.0, path /home/abui...RC/zlapmt.f(3), and no date in the footer, periodt. 🎀✨