TESTING/LIN/dchktr.f(3)

💖 TESTING/LIN/dchktr.f(3) 💖

okay so this page is straight out of the Library Functions Manual, and it's literally the doc for TESTING/LIN/dchktr.f — a testing routine with so many parameters that she's giving main-character energy for real. buckle up bestie, we're going through every single one. 🦋

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🌈 NAME 🌈

TESTING/LIN/dchktr.f — that's the name, periodt. 💅

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✨ SYNOPSIS ✨

Functions/Subroutines

subroutine dchktr (dotype, nn, nval, nnb, nbval, nns, nsval, thresh,
       tsterr, nmax, a, ainv, b, x, xact, work, rwork, iwork, nout)
       DCHKTR

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🎀 Function/Subroutine Documentation 🎀

subroutine dchktr (logical, dimension( * ) dotype, integer nn, integer,
       dimension( * ) nval, integer nnb, integer, dimension( * ) nbval, integer
       nns, integer, dimension( * ) nsval, double precision thresh, logical
       tsterr, integer nmax, double precision, dimension( * ) a, double
       precision, dimension( * ) ainv, double precision, dimension( * ) b,
       double precision, dimension( * ) x, double precision, dimension( * )
       xact, double precision, dimension( * ) work, double precision,
       dimension( * ) rwork, integer, dimension( * ) iwork, integer nout)
       DCHKTR

Purpose

DCHKTR tests DTRTRI, -TRS, -RFS, and -CON, and DLATRS(3)

that's the whole purpose. she's concise, she's iconic, she knows what she's about. 👑

Parameters

• DOTYPE — DOTYPE is LOGICAL array, dimension (NTYPES). The matrix types to be 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. The number of values of N contained in the vector NVAL.
• NVAL — NVAL is INTEGER array, dimension (NN). The values of the matrix column dimension N.
• NNB — NNB is INTEGER. The number of values of NB contained in the vector NBVAL.
• NBVAL — NBVAL is INTEGER array, dimension (NNB). The values of the blocksize NB.
• NNS — NNS is INTEGER. The number of values of NRHS contained in the vector NSVAL.
• NSVAL — NSVAL is INTEGER array, dimension (NNS). The values of the number of right hand sides NRHS.
• THRESH — THRESH is DOUBLE PRECISION. 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. Flag that indicates whether error exits are to be tested.
• NMAX — NMAX is INTEGER. The leading dimension of the work arrays. NMAX >= the maximum value of N in NVAL. do not play with this one bestie. ⚠️
• A — A is DOUBLE PRECISION array, dimension (NMAX*NMAX).
• AINV — AINV is DOUBLE PRECISION array, dimension (NMAX*NMAX).
• B — B is DOUBLE PRECISION array, dimension (NMAX*NSMAX) where NSMAX is the largest entry in NSVAL.
• X — X is DOUBLE PRECISION array, dimension (NMAX*NSMAX).
• XACT — XACT is DOUBLE PRECISION array, dimension (NMAX*NSMAX).
• WORK — WORK is DOUBLE PRECISION array, dimension (NMAX*max(3,NSMAX)).
• RWORK — RWORK is DOUBLE PRECISION array, dimension (max(NMAX,2*NSMAX)).
• IWORK — IWORK is INTEGER array, dimension (NMAX).
• NOUT — NOUT is INTEGER. The unit number for output.

Author

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

Definition at line 164 of file dchktr.f.

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🌟 Author 🌟

Generated automatically by Doxygen for LAPACK from the source code.

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and that's the whole page, bestie — no cap, every parameter accounted for, every array dimension preserved exactly. 💖 brought to you by LAPACK Version 3.12.0 and the source page TESTING/LIN/dchktr.f(3). slay. 🎀✨