TESTING/LIN/zchkpt.f(3)

🌸 NAME 🌸

TESTING/LIN/zchkpt.f — bestie, this is the glow-up of the zchkpt Fortran subroutine page from the Library Functions Manual. It’s LAPACK testing content, and it’s giving very specific main-character energy. 💅

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✨ SYNOPSIS ✨

💫 Functions/Subroutines 💫

subroutine zchkpt (dotype, nn, nval, nns, nsval, thresh, tsterr, a, d,
    e, b, x, xact, work, rwork, nout)

ZCHKPT — that’s the subroutine, and yes, she has a lot of arguments. Iconic. 🎀

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🧪 Function/Subroutine Documentation 🧪

Here’s the full typed-out signature, exactly as it appears, no edits:

subroutine zchkpt (logical, dimension( * ) dotype, integer nn, integer,
    dimension( * ) nval, integer nns, integer, dimension( * ) nsval, double
    precision thresh, logical tsterr, complex*16, dimension( * ) a, double
    precision, dimension( * ) d, complex*16, dimension( * ) e, complex*16,
    dimension( * ) b, complex*16, dimension( * ) x, complex*16, dimension( *
    ) xact, complex*16, dimension( * ) work, double precision, dimension( *
    ) rwork, integer nout)

ZCHKPT 🫶

🎯 Purpose

The purpose is literally: ZCHKPT tests ZPTTRF, -TRS, -RFS, and -CON. She ate and left no crumbs. ✨

🧸 Parameters

• DOTYPE — DOTYPE is LOGICAL array, dimension (NTYPES). These are the matrix types used for testing. Matrices of type j (for 1 <= j <= NTYPES) are used for testing if DOTYPE(j) = .TRUE.; if DOTYPE(j) = .FALSE., then type j is not used. 🎀
• NN — NN is INTEGER. It’s the number of values of N contained in the vector NVAL.
• NVAL — NVAL is INTEGER array, dimension (NN). These are the values of the matrix dimension N.
• NNS — NNS is INTEGER. It’s the number of values of NRHS contained in the vector NSVAL.
• NSVAL — NSVAL is INTEGER array, dimension (NNS). These are the values of the number of right hand sides NRHS.
• THRESH — THRESH is DOUBLE PRECISION. It’s the threshold value for the test ratios. A result is included in the output file if RESULT >= THRESH. To have every test ratio printed, use THRESH = 0. 🔥
• TSTERR — TSTERR is LOGICAL. It’s a flag that indicates whether error exits are to be tested.
• A — A is COMPLEX*16 array, dimension (NMAX*2).
• D — D is DOUBLE PRECISION array, dimension (NMAX*2).
• E — E is COMPLEX*16 array, dimension (NMAX*2).
• B — B is COMPLEX*16 array, dimension (NMAX*NSMAX) where NSMAX is the largest entry in NSVAL. 💖
• X — X is COMPLEX*16 array, dimension (NMAX*NSMAX).
• XACT — XACT is COMPLEX*16 array, dimension (NMAX*NSMAX).
• WORK — WORK is COMPLEX*16 array, dimension (NMAX*max(3,NSMAX)).
• RWORK — RWORK is DOUBLE PRECISION array, dimension (max(NMAX,2*NSMAX)).
• NOUT — NOUT is INTEGER. It’s the unit number for output. 🌈

👑 Author

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

Definition at line 145 of file zchkpt.f. 📌

🪄 Author 🪄

Generated automatically by Doxygen for LAPACK from the source code. No cap. 🫶

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Cute footer sign-off: LAPACK · Version 3.12.0 · TESTING/LIN/zchkpt.f(3) — that’s the source/version/footer vibe, bestie. Byeee 💖✨