DCHKTB(3)

💖 DCHKTB 💖

Okay bestie, welcome to the <pink>Library Functions Manual</pink> page for DCHKTB 💅. This one is all about testing energy, so grab a lil snack 🍓 and let's get into it.

✨ NAME ✨

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

That's the path, periodt. No extra lore in this NAME section 🎀.

🦋 SYNOPSIS 🦋

Functions/Subroutines

subroutine DCHKTB (dotype, nn, nval, nns, nsval, thresh, tsterr, nmax,
    ab, ainv, b, x, xact, work, rwork, iwork, nout)
    DCHKTB

🌸 Function/Subroutine Documentation 🌸

subroutine DCHKTB (logical, dimension( * ) dotype, integer nn, integer,
    dimension( * ) nval, integer nns, integer, dimension( * ) nsval, double
    precision thresh, logical tsterr, integer nmax, double precision,
    dimension( * ) ab, 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)
    DCHKTB

🎀 Purpose 🎀

Real talk: DCHKTB tests DTBTRS, -RFS, and -CON, and DLATBS. That's the whole flex 💪.

👑 Parameters 👑

• DOTYPE — DOTYPE is a LOGICAL array, dimension (NTYPES). It's the matrix-type menu: type j (for 1 <= j <= NTYPES) gets used for testing if DOTYPE(j) = .TRUE.; if DOTYPE(j) = .FALSE., then type j is not used. Slay 💅.
• NN — NN is INTEGER. The number of values of N contained in the vector NVAL.
• NVAL — NVAL is an INTEGER array, dimension (NN). The values of the matrix column dimension N.
• NNS — NNS is INTEGER. The number of values of NRHS contained in the vector NSVAL.
• NSVAL — NSVAL is an 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.
• AB — AB is a DOUBLE PRECISION array, dimension (NMAX*NMAX).
• AINV — AINV is a DOUBLE PRECISION array, dimension (NMAX*NMAX).
• B — B is a DOUBLE PRECISION array, dimension (NMAX*NSMAX), where NSMAX is the largest entry in NSVAL.
• X — X is a DOUBLE PRECISION array, dimension (NMAX*NSMAX).
• XACT — XACT is a DOUBLE PRECISION array, dimension (NMAX*NSMAX).
• WORK — WORK is a DOUBLE PRECISION array, dimension (NMAX*max(3,NSMAX)).
• RWORK — RWORK is a DOUBLE PRECISION array, dimension (max(NMAX,2*NSMAX)).
• IWORK — IWORK is an 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 152 of file dchktb.f.

💜 Author 💜

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