TESTING/LIN/sqrt12.f(3)

💖 NAME

okay so bestie, this page is TESTING/LIN/sqrt12.f(3) — and yes, the manual name is the Library Functions Manual, folded in right here so you don’t have to squint at a header line. We’re talking about SQRT12, a real function with big testing energy. 💅

✨ SYNOPSIS

🌸 Functions/Subroutines

• real function sqrt12 (m, n, a, lda, s, work, lwork) — SQRT12

🧚 Function/Subroutine Documentation

real function sqrt12 (integer m, integer n, real, dimension( lda, * ) a,
    integer lda, real, dimension( * ) s, real, dimension( lwork ) work,
    integer lwork)

SQRT12 — iconic, honestly.

🎀 Purpose

!> !> SQRT12 computes the singular values svlues' of the upper trapezoid !> of A(1:M,1:N) and returns the ratio !> !> || svlues - s ||/(||s||*eps*max(M,N)) !>`

🍓 Parameters

• M — INTEGER. The number of rows of the matrix A.
• N — INTEGER. The number of columns of the matrix A.
• A — REAL array, dimension (LDA,N). The M-by-N matrix A. Only the upper trapezoid is referenced.
• LDA — INTEGER. The leading dimension of the array A.
• S — REAL array, dimension (min(M,N)). The singular values of the matrix A.
• WORK — REAL array, dimension (LWORK).
• LWORK — INTEGER. The length of the array WORK. LWORK >= max(M*N + 4*min(M,N) + max(M,N), M*N+2*MIN( M, N )+4*N).

👑 Author

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

Definition at line 88 of file sqrt12.f.

👑 Author

Generated automatically by Doxygen for LAPACK from the source code.

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xoxo, your LAPACK bestie 💖 — source: TESTING/LIN/sqrt12.f(3), version: LAPACK Version 3.12.0. Date? The page doesn’t list one, so I’m not inventing one, periodt. 🫶