DCHKTR(3)

🎀 NAME 🎀

okay so bestie, this is DCHKTR(3) from the Library Functions Manual — header path is /home/abui...IN/dchktr.f(3). The actual file being documented is:

/home/abuild/rpmbuild/BUILD/lapack-static-3.12.0-build/lapack-3.12.0/TESTING/LIN/dchktr.f

✨ 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

💅 Function/Subroutine Documentation 💅

🌸 subroutine DCHKTR 🌸

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 literally the whole purpose — no extra lore, no cap.

🍓 Parameters 🍓

• DOTYPE — 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 — INTEGER. The number of values of N contained in the vector NVAL.
• NVAL — INTEGER array, dimension (NN). The values of the matrix column dimension N.
• NNB — INTEGER. The number of values of NB contained in the vector NBVAL.
• NBVAL — INTEGER array, dimension (NNB). The values of the blocksize NB.
• NNS — INTEGER. The number of values of NRHS contained in the vector NSVAL.
• NSVAL — INTEGER array, dimension (NNS). The values of the number of right hand sides NRHS.
• THRESH — 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 — LOGICAL. Flag that indicates whether error exits are to be tested.
• NMAX — INTEGER. The leading dimension of the work arrays. NMAX >= the maximum value of N in NVAL.
• A — DOUBLE PRECISION array, dimension (NMAX*NMAX).
• AINV — DOUBLE PRECISION array, dimension (NMAX*NMAX).
• B — DOUBLE PRECISION array, dimension (NMAX*NSMAX) where NSMAX is the largest entry in NSVAL.
• X — DOUBLE PRECISION array, dimension (NMAX*NSMAX).
• XACT — DOUBLE PRECISION array, dimension (NMAX*NSMAX).
• WORK — DOUBLE PRECISION array, dimension (NMAX*max(3,NSMAX)).
• RWORK — DOUBLE PRECISION array, dimension (max(NMAX,2*NSMAX)).
• IWORK — INTEGER array, dimension (NMAX).
• NOUT — 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.

🫶 Author 🫶

Generated automatically by Doxygen for LAPACK from the source code.

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mwah 💋 — that's the whole page, bestie. Sign-off: LAPACK Version 3.12.0, page path /home/abui...IN/dchktr.f(3) ✨🫶