SGET33(3)

📦 version 3.12.0, in opensuse-leap 16.0

💅 NAME 💅

ok so this whole page is about /home/abuild/rpmbuild/BUILD/lapack-static-3.12.0-build/lapack-3.12.0/TESTING/EIG/sget33.f — yes that's the entire name field bestie, it's a whole ✨journey✨ of a path. It's the sget33.f file, living in the TESTING/EIG corner of the LAPACK tree, and it's from the Library Functions Manual, fr fr. 🎀

🌸 SYNOPSIS 🌸

✨ Functions/Subroutines ✨

  • subroutine SGET33 (rmax, lmax, ninfo, knt) — literally SGET33, that's the vibe 💫

🦋 Function/Subroutine Documentation 🦋

subroutine SGET33 (real rmax, integer lmax, integer ninfo, integer knt)

SGET33. That's her. That's the icon, the moment, the main character. 👑

💖 Purpose: 💖

ok so lowkey the whole point of SGET33 is that it tests SLANV2, which is the routine that puts 2 by 2 blocks into standard form. no cap, that's the job. 🫶

In other words (and I'm quoting the math here, not vibing my way through it), it computes a two by two rotation

   [ C S ][T(1,1) T(1,2)][ C -S ] = [ T11 T12 ]
   [-S C ][T(2,1) T(2,2)][ S  C ]   [ T21 T22 ]

where in... either

  1. T21=0 (real eigenvalues), or
  2. T11=T22 and T21*T12<0 (complex conjugate eigenvalues).

and yeah, that's the whole rotation situation. 🌀

We also verify that the residual is small. slay. 💅

🌈 Parameters 🌈

  • RMAX — RMAX is REAL, and it's the Value of the largest test ratio. the biggest ratio of them all, she's the record holder 👑
  • LMAX — LMAX is INTEGER, and it's the Example number where largest test ratio achieved. i.e. the example that ate 💀🔥
  • NINFO — NINFO is INTEGER, and it's the Number of examples returned with INFO .NE. 0. (not equal to zero, for the uninitiated 🧚)
  • KNT — KNT is INTEGER, and it's the Total number of examples tested. the full headcount bestie 🍓

👑 Author 👑

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

the whole squad showed up for this one, we love a group project that actually worked 🫶✨

Definition at line 75 of file sget33.f. — line 75, remember that number, it's iconic 💫

🎀 Author (yes, again, it's a whole second Author section, don't @ me) 🎀

Generated automatically by Doxygen for LAPACK from the source code. so like, a robot wrote this one, not a human, and honestly? she did a decent job 🤖💖

heads up bestie: this page was auto-generated, so if something reads a little unhinged, blame Doxygen, not me 🙈

and that's the whole page!! mwah 💋 — this masterpiece came from LAPACK, Version 3.12.0, dated /home/abui...IG/sget33.f(3) which is genuinely the most cursed date format I've ever seen but we move 🌈⭐💅

📦 where this page comes from