TESTING/EIG/cglmts.f(3)

okay bestie, this is TESTING/EIG/cglmts.f(3) from the Library Functions Manual — the whole page is about the cglmts subroutine, and it's giving “test routine for CGGGLM” energy. periodt. 🫶✨

💖 NAME 💖

TESTING/EIG/cglmts.f

✨ SYNOPSIS ✨

Functions/Subroutines

       subroutine cglmts (n, m, p, a, af, lda, b, bf, ldb, d, df, x, u, work,
           lwork, rwork, result)

CGLMTS

🌸 Function/Subroutine Documentation 🌸

   subroutine cglmts (integer n, integer m, integer p, complex, dimension( lda,
       * ) a, complex, dimension( lda, * ) af, integer lda, complex, dimension(
       ldb, * ) b, complex, dimension( ldb, * ) bf, integer ldb, complex,
       dimension( * ) d, complex, dimension( * ) df, complex, dimension( * ) x,
       complex, dimension( * ) u, complex, dimension( lwork ) work, integer
       lwork, real, dimension( * ) rwork, real result)

CGLMTS

Purpose 🎯

CGLMTS tests CGGGLM - a subroutine for solving the generalized linear model problem. That's the whole purpose, no cap. 💅

Parameters 💅

okay so here's the parameter tea, in order, and yes I'm keeping every constraint exactly as written:

• N — N is INTEGER. The number of rows of the matrices A and B. Constraint: N >= 0.
• M — M is INTEGER. The number of columns of the matrix A. Constraint: M >= 0.
• P — P is INTEGER. The number of columns of the matrix B. Constraint: P >= 0.
• A — A is COMPLEX array, dimension (LDA,M). The N-by-M matrix A.
• AF — AF is COMPLEX array, dimension (LDA,M). That's all the page says, bestie.
• LDA — LDA is INTEGER. The leading dimension of the arrays A, AF. Constraint: LDA >= max(M,N).
• B — B is COMPLEX array, dimension (LDB,P). The N-by-P matrix A.

yep, the B entry literally says “The N-by-P matrix A.” — I'm not editing it, because the rule is keep every detail. 🙈

• BF — BF is COMPLEX array, dimension (LDB,P). Nothing extra listed.
• LDB — LDB is INTEGER. The leading dimension of the arrays B, BF. Constraint: LDB >= max(P,N).
• D — D is COMPLEX array, dimension ( N ). On input, the left hand side of the GLM.
• DF — DF is COMPLEX array, dimension ( N ). That's all the page gives.
• X — X is COMPLEX array, dimension ( M ). solution vector X in the GLM problem.
• U — U is COMPLEX array, dimension ( P ). solution vector U in the GLM problem.
• WORK — WORK is COMPLEX array, dimension (LWORK). No extra lore.
• LWORK — LWORK is INTEGER. The dimension of the array WORK.
• RWORK — RWORK is REAL array, dimension (M). That's the whole vibe.
• RESULT — RESULT is REAL. The test ratio:

                           norm( d - A*x - B*u )
            RESULT = -----------------------------------------
                     (norm(A)+norm(B))*(norm(x)+norm(u))*EPS

Author 👑

Univ. of Tennessee

Univ. of California Berkeley

Univ. of Colorado Denver

NAG Ltd.

Definition at line 148 of file cglmts.f.

Author 🌈

Generated automatically by Doxygen for LAPACK from the source code.

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mwah 💖 that's the whole page, bestie — signed off from LAPACK Version 3.12.0, page TESTING/EIG/cglmts.f(3). No date listed, so I'm not inventing one. 🎀✨