TESTING/LIN/cchktb.f(3)

💖 NAME 💖

TESTING/LIN/cchktb.f(3) — that’s the manual page name, bestie, and the actual subroutine under the microscope is cchktb. It’s giving “testing routine with main character energy” ✨

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✨ SYNOPSIS ✨

🌀 Functions/Subroutines 🌀

• subroutine cchktb (dotype, nn, nval, nns, nsval, thresh, tsterr, nmax, ab, ainv, b, x, xact, work, rwork, nout) — this is the CCHKTB subroutine, and yes, she brought a whole squad of arguments 💅

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

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🎀 Function/Subroutine Documentation 🎀

Here’s the full signature situation, copied exactly so nobody gets lost:

subroutine cchktb (logical, dimension( * ) dotype, integer nn, integer,
       dimension( * ) nval, integer nns, integer, dimension( * ) nsval, real
       thresh, logical tsterr, integer nmax, complex, dimension( * ) ab,
       complex, dimension( * ) ainv, complex, dimension( * ) b, complex,
       dimension( * ) x, complex, dimension( * ) xact, complex, dimension( * )
       work, real, dimension( * ) rwork, integer nout)

CCHKTB is the icon, the moment, the routine. 🫶

🔥 Purpose 🔥

CCHKTB tests CTBTRS, -RFS, and -CON, and CLATBS. That’s the whole purpose, no cap — she’s checking those routines and she’s doing it with confidence. 💖

🌸 Parameters 🌸

• DOTYPE — is a 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. So basically: DOTYPE is the vibe check for which matrix types get invited to the test party 🎀
• NN — is INTEGER. It’s the number of values of N contained in the vector NVAL. Lowkey the headcount for the N values ✨
• NVAL — is an INTEGER array, dimension (NN). These are the values of the matrix column dimension N. She’s carrying the actual N lineup 💅
• NNS — is INTEGER. It’s the number of values of NRHS contained in the vector NSVAL. Another headcount, but this time for right-hand-side counts 🦋
• NSVAL — is an INTEGER array, dimension (NNS). These are the values of the number of right hand sides NRHS. The right-hand-side squad is assembled here 🌸
• THRESH — is REAL. 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. So if you want all the tea, set it to zero, periodt 💀
• TSTERR — is LOGICAL. It’s a flag that indicates whether error exits are to be tested. Error exits are getting tested? Groundbreaking. 🙈
• NMAX — is INTEGER. It’s the leading dimension of the work arrays, and NMAX >= the maximum value of N in NVAL. Respect the leading dimension, bestie 👑
• AB — is a COMPLEX array, dimension (NMAX*NMAX). That’s the storage situation, fr fr 🌈
• AINV — is a COMPLEX array, dimension (NMAX*NMAX). Another big mood in complex-array form ✨
• B — is a COMPLEX array, dimension (NMAX*NSMAX) where NSMAX is the largest entry in NSVAL. She’s got room for the biggest right-hand-side count 🎀
• X — is a COMPLEX array, dimension (NMAX*NSMAX). Same dimension energy, different array 💜
• XACT — is a COMPLEX array, dimension (NMAX*NSMAX). Exact-solution storage has entered the chat 🦋
• WORK — is a COMPLEX array, dimension (NMAX*max(3,NSMAX)). The work array is doing the most, as usual 💅
• RWORK — is a REAL array, dimension (max(NMAX,2*NSMAX)). Real-valued workspace, slaying in her own lane 🔥
• NOUT — is INTEGER. It’s the unit number for output. That’s where the test results get printed, iykyk 👑

👑 Author 👑

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

Definition at line 147 of file cchktb.f.

👑 Author 👑

Generated automatically by Doxygen for LAPACK from the source code. Doxygen really said “I’ll handle the paperwork,” and honestly? Iconic. 🫶

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Okay bestie, that’s the whole page. This footer situation is LAPACK Version 3.12.0 for TESTING/LIN/cchktb.f(3) — take care of her, she’s a testing routine with main character energy 💖✨