TESTING/EIG/zckgsv.f(3)

🎀 TESTING/EIG/zckgsv.f(3) 🎀

okay so bestie, welcome to the Library Functions Manual page for TESTING/EIG/zckgsv.f — yes, it's giving major LAPACK testing energy, and we're gonna read it together. ✨

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✨ NAME ✨

TESTING/EIG/zckgsv.f — that's the whole name, no cap. 💅

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🌸 SYNOPSIS 🌸

🦋 Functions/Subroutines 🦋

subroutine zckgsv (nm, mval, pval, nval, nmats, iseed, thresh, nmax, a,
    af, b, bf, u, v, q, alpha, beta, r, iwork, work, rwork, nin, nout,
    info)

ZCKGSV

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💫 Function/Subroutine Documentation 💫

here's the full signature, exactly as it is, because we do not play with declarations:

subroutine zckgsv (integer nm, integer, dimension( * ) mval, integer,
    dimension( * ) pval, integer, dimension( * ) nval, integer nmats,
    integer, dimension( 4 ) iseed, double precision thresh, integer nmax,
    complex*16, dimension( * ) a, complex*16, dimension( * ) af, complex*16,
    dimension( * ) b, complex*16, dimension( * ) bf, complex*16, dimension(
    * ) u, complex*16, dimension( * ) v, complex*16, dimension( * ) q,
    double precision, dimension( * ) alpha, double precision, dimension( * )
    beta, complex*16, dimension( * ) r, integer, dimension( * ) iwork,
    complex*16, dimension( * ) work, double precision, dimension( * ) rwork,
    integer nin, integer nout, integer info)
    ZCKGSV

ZCKGSV

🎀 Purpose 🎀

ZCKGSV tests ZGGSVD: the GSVD for M-by-N matrix A and P-by-N matrix B. periodt, that's the whole purpose. 🫶

🧚 Parameters 🧚

• NM — NM is INTEGER; it's the number of values of M contained in the vector MVAL. 💖
• MVAL — MVAL is INTEGER array, dimension (NM); these are the values of the matrix row dimension M. 🌟
• PVAL — PVAL is INTEGER array, dimension (NP); these are the values of the matrix row dimension P. (yes, NP — we're keeping it exactly like that, bestie.)
• NVAL — NVAL is INTEGER array, dimension (NN); these are the values of the matrix column dimension N. 🌈
• NMATS — NMATS is INTEGER: the number of matrix types to be tested for each combination of matrix dimensions. If NMATS >= NTYPES (the maximum number of matrix types), then all the different types are generated for testing. If NMATS < NTYPES, another input line is read to get the numbers of the matrix types to be used. 🎀
• ISEED — ISEED is INTEGER array, dimension (4). On entry, it's the seed of the random number generator. The array elements should be between 0 and 4095, otherwise they will be reduced mod 4096, and ISEED(4) must be odd. On exit, it's the next seed in the random number sequence after all the test matrices have been generated. 🔥
• 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. 💅
• NMAX — NMAX is INTEGER: the maximum value permitted for M or N, used in dimensioning the work arrays. ✨
• A — A is COMPLEX*16 array, dimension (NMAX*NMAX). 🦋
• AF — AF is COMPLEX*16 array, dimension (NMAX*NMAX). 🌸
• B — B is COMPLEX*16 array, dimension (NMAX*NMAX). 🫶
• BF — BF is COMPLEX*16 array, dimension (NMAX*NMAX). 🎀
• U — U is COMPLEX*16 array, dimension (NMAX*NMAX). 💜
• V — V is COMPLEX*16 array, dimension (NMAX*NMAX). 🧚
• Q — Q is COMPLEX*16 array, dimension (NMAX*NMAX). ⭐
• ALPHA — ALPHA is DOUBLE PRECISION array, dimension (NMAX). 🌸
• BETA — BETA is DOUBLE PRECISION array, dimension (NMAX). 🍓
• R — R is COMPLEX*16 array, dimension (NMAX*NMAX). 💖
• IWORK — IWORK is INTEGER array, dimension (NMAX). ✨
• WORK — WORK is COMPLEX*16 array, dimension (NMAX*NMAX). 🔥
• RWORK — RWORK is DOUBLE PRECISION array, dimension (NMAX). 🌈
• NIN — NIN is INTEGER: the unit number for input. 📥
• NOUT — NOUT is INTEGER: the unit number for output. 📤
• INFO — INFO is INTEGER: = 0 : successful exit; > 0 : If ZLATMS returns an error code, the absolute value of it is returned. 💀

👑 Author 👑

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

Definition at line 195 of file zckgsv.f.

👑 Author 👑

Generated automatically by Doxygen for LAPACK from the source code. (yes, the page itself is a generated icon, not a hand-written note 💅)

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okay bye bestie — signing off from LAPACK Version 3.12.0, page TESTING/EIG/zckgsv.f(3). stay slay, stay compiled, and may your tests be iconic 💖✨