TESTING/EIG/sckgsv.f(3)

💖 NAME 💖

okay bestie, welcome to the Library Functions Manual page for TESTING/EIG/sckgsv.f — that's the source file for the sckgsv subroutine, and this whole page is its documentation era. 🫶

🌸 SYNOPSIS 🌸

Here's the quick lineup, bestie:

💅 Functions/Subroutines 💅

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

🦋 Function/Subroutine Documentation 🦋

🌟 subroutine sckgsv 🌟

   subroutine sckgsv (integer nm, integer, dimension( * ) mval, integer,
       dimension( * ) pval, integer, dimension( * ) nval, integer nmats,
       integer, dimension( 4 ) iseed, real thresh, integer nmax, real,
       dimension( * ) a, real, dimension( * ) af, real, dimension( * ) b, real,
       dimension( * ) bf, real, dimension( * ) u, real, dimension( * ) v, real,
       dimension( * ) q, real, dimension( * ) alpha, real, dimension( * ) beta,
       real, dimension( * ) r, integer, dimension( * ) iwork, real, dimension(
       * ) work, real, dimension( * ) rwork, integer nin, integer nout, integer
       info)
       SCKGSV

🎯 Purpose 🎯

okay so SCKGSV tests SGGSVD: the GSVD for an M-by-N matrix A and a P-by-N matrix B. that's the whole assignment, bestie. 💅

🧮 Parameters 🧮

• NM — INTEGER; the number of values of M contained in the vector MVAL. ✨
• MVAL — INTEGER array, dimension (NM); these are the values of the matrix row dimension M. 🌸
• PVAL — INTEGER array, dimension (NP); these are the values of the matrix row dimension P. 🦋
• NVAL — INTEGER array, dimension (NN); these are the values of the matrix column dimension N. 🎀
• NMATS — 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 — INTEGER array, dimension (4). On entry, 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, the next seed in the random number sequence after all the test matrices have been generated. 👑
• THRESH — REAL; 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 — INTEGER; the maximum value permitted for M or N, used in dimensioning the work arrays. 🌈
• A — REAL array, dimension (NMAX*NMAX). ⭐
• AF — REAL array, dimension (NMAX*NMAX). ⭐
• B — REAL array, dimension (NMAX*NMAX). ⭐
• BF — REAL array, dimension (NMAX*NMAX). ⭐
• U — REAL array, dimension (NMAX*NMAX). ⭐
• V — REAL array, dimension (NMAX*NMAX). ⭐
• Q — REAL array, dimension (NMAX*NMAX). ⭐
• ALPHA — REAL array, dimension (NMAX). 💜
• BETA — REAL array, dimension (NMAX). 💜
• R — REAL array, dimension (NMAX*NMAX). ⭐
• IWORK — INTEGER array, dimension (NMAX). 🧚
• WORK — REAL array, dimension (NMAX*NMAX). ⭐
• RWORK — REAL array, dimension (NMAX). 💜
• NIN — INTEGER; the unit number for input. 🍓
• NOUT — INTEGER; the unit number for output. 🍓
• INFO — INTEGER; = 0 : successful exit. > 0 : If SLATMS 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 sckgsv.f.

🧚 Author 🧚

Generated automatically by Doxygen for LAPACK from the source code.

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mwah 💋 — this page is LAPACK Version 3.12.0, footer tag TESTING/EIG/sckgsv.f(3), and that's the footer vibe (no extra date line here, bestie). no cap, periodt. 💖