CRZT01(3)

📦 version 3.12.0, in opensuse-leap 16.0

💅 CRZT01(3) — Library Functions Manual 💅

Hey bestie, welcome to the Library Functions Manual page for CRZT01(3) — yes, the title vibe is /home/abui...IN/crzt01.f(3), but we’re folding that header energy in right here instead of copy-pasting the whole line. Let’s get into it. 🫶

🎀 NAME 🎀

/home/abuild/rpmbuild/BUILD/lapack-static-3.12.0-build/lapack-3.12.0/TESTING/LIN/crzt01.f

✨ SYNOPSIS ✨

Functions/Subroutines

real function CRZT01 (m, n, a, af, lda, tau, work, lwork)
    CRZT01

🦋 Function/Subroutine Documentation 🦋

real function CRZT01 (integer m, integer n, complex, dimension( lda, * ) a,
    complex, dimension( lda, * ) af, integer lda, complex, dimension( * )
    tau, complex, dimension( lwork ) work, integer lwork)

CRZT01

🌸 Purpose 🌸

Okay so this function is out here returning this exact ratio:

!>
!> CRZT01 returns
!>      || A - R*Q || / ( M * eps * ||A|| )
!> for an upper trapezoidal A that was factored with CTZRZF.
!>

No cap, that’s the whole purpose. It’s giving “upper trapezoidal A that was factored with CTZRZF” energy. 💜

🍓 Parameters 🍓

  • M — M is INTEGER, and it’s literally the number of rows of the matrices A and AF. ✨
  • N — N is INTEGER, and it’s the number of columns of the matrices A and AF. 💖
  • A — A is COMPLEX array, dimension (LDA,N), aka the original upper trapezoidal M by N matrix A. Main character matrix, honestly. 👑
  • AF — AF is COMPLEX array, dimension (LDA,N), and it’s the output of CTZRZF for input matrix A. Important: the lower triangle is not referenced. 🙈
  • LDA — LDA is INTEGER, and it’s the leading dimension of the arrays A and AF. 💅
  • TAU — TAU is COMPLEX array, dimension (M), holding details of the Householder transformations as returned by CTZRZF. 🧚
  • WORK — WORK is COMPLEX array, dimension (LWORK). That’s it, that’s the whole note. 🎀
  • LWORK — LWORK is INTEGER, and it’s the length of the array WORK. The rule is LWORK >= m*n + m — do not skip the vibe check on that. ⭐

👑 Author 👑

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

Definition at line 96 of file crzt01.f.

🌈 Author 🌈

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✨ Cute sign-off time, bestie: this page is LAPACK Version 3.12.0, and the footer path is /home/abui...IN/crzt01.f(3) — periodt. 💖🎀

📦 where this page comes from