TESTING/EIG/zget37.f(3)

okay bestie, welcome to TESTING/EIG/zget37.f(3) — this little icon lives in the Library Functions Manual, and it's a LAPACK test page for ZGET37. No cap, it's giving very specific Unix energy. 🎀

🌸 NAME 🌸

TESTING/EIG/zget37.f — that's the name, periodt. 💅

✨ SYNOPSIS ✨

Functions/Subroutines

       subroutine zget37 (rmax, lmax, ninfo, knt, nin)
           ZGET37

🦋 Function/Subroutine Documentation 🦋

   subroutine zget37 (double precision, dimension( 3 ) rmax, integer,
       dimension( 3 ) lmax, integer, dimension( 3 ) ninfo, integer knt, integer
       nin)
       ZGET37

💖 Purpose 💖

ZGET37 tests ZTRSNA, a routine for estimating condition numbers of eigenvalues and/or right eigenvectors of a matrix. 🧚

The test matrices are read from a file with logical unit number NIN. That's the whole setup, and it's lowkey iconic. ✨

🎀 Parameters 🎀

RMAX

• Type/shape: RMAX is DOUBLE PRECISION array, dimension (3).
• What it holds: value of the largest test ratio. Specifically:
  • RMAX(1) = largest ratio comparing different calls to ZTRSNA
  • RMAX(2) = largest error in reciprocal condition numbers taking their conditioning into account
  • RMAX(3) = largest error in reciprocal condition numbers not taking their conditioning into account (may be larger than RMAX(2))

LMAX

• Type/shape: LMAX is INTEGER array, dimension (3).
• LMAX(i) is example number where largest test ratio RMAX(i) is achieved.
• Also:
  • If ZGEHRD returns INFO nonzero on example i, LMAX(1)=i
  • If ZHSEQR returns INFO nonzero on example i, LMAX(2)=i
  • If ZTRSNA returns INFO nonzero on example i, LMAX(3)=i

NINFO

• Type/shape: NINFO is INTEGER array, dimension (3).
• The counts are:
  • NINFO(1) = No. of times ZGEHRD returned INFO nonzero
  • NINFO(2) = No. of times ZHSEQR returned INFO nonzero
  • NINFO(3) = No. of times ZTRSNA returned INFO nonzero

KNT

• Type: KNT is INTEGER.
• What it is: total number of examples tested.

NIN

• Type: NIN is INTEGER.
• What it is: input logical unit number.

👑 Author 👑

Shoutout to the author squad:

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

📍 Definition at line 📍

Definition at line 89 of file zget37.f.

👑 Author (auto-generated edition) 👑

Generated automatically by Doxygen for LAPACK from the source code.

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Signed, sealed, and slaying: LAPACK Version 3.12.0 for TESTING/EIG/zget37.f(3) — that's the source/version and page sign-off, bestie. The footer has no date listed, so we're not inventing one; the vibe is timeless. 💖✨