TESTING/EIG/zget38.f(3)

📦
version 3.12.1 · 3 versions
, in arch rolling

🌸 NAME 🌸

TESTING/EIG/zget38.f — okay bestie, this is the page for TESTING/EIG/zget38.f(3) from the Library Functions Manual. It’s giving LAPACK test-routine energy, and we are keeping every fact, fr fr.

✨ SYNOPSIS ✨

🎀 Functions/Subroutines 🎀

  • subroutine zget38 (rmax, lmax, ninfo, knt, nin) — ZGET38

💅 Function/Subroutine Documentation 💅

subroutine zget38 (double precision, dimension( 3 ) rmax, integer,
     dimension( 3 ) lmax, integer, dimension( 3 ) ninfo, integer knt, integer
     nin)

ZGET38

✨ Purpose ✨

ZGET38 tests ZTRSEN, a routine for estimating condition numbers of a cluster of eigenvalues and/or its associated right invariant subspace.

The test matrices are read from a file with logical unit number NIN. Obsessed with that file-reading moment? Same.

🎀 Parameters 🎀

  • RMAX — RMAX is DOUBLE PRECISION array, dimension (3). Values of the largest test ratios:
    • RMAX(1) = largest residuals from ZHST01 or comparing different calls to ZTRSEN
    • 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 — 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 ZTRSEN returns INFO nonzero on example i, LMAX(3)=i
  • NINFO — NINFO is INTEGER array, dimension (3).
    • NINFO(1) = No. of times ZGEHRD returned INFO nonzero
    • NINFO(2) = No. of times ZHSEQR returned INFO nonzero
    • NINFO(3) = No. of times ZTRSEN returned INFO nonzero
  • KNT — KNT is INTEGER. Total number of examples tested.
  • NIN — NIN is INTEGER. Input logical unit number.

🫶 Author 🫶

Univ. of Tennessee

Univ. of California Berkeley

Univ. of Colorado Denver

NAG Ltd.

Definition at line 90 of file zget38.f.

💜 Author 💜

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That’s the whole page, bestie — the footer source/version/date slot says LAPACK Version 3.12.0 and TESTING/EIG/zget38.f(3). 💖

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