TESTING/LIN/cqrt15.f(3)

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Welcome to the page for TESTING/LIN/cqrt15.f from the LAPACK Library Functions Manual. It's giving linear algebra test-matrix realness, and we're keeping every detail, no cap. iykyk 💅

✨ NAME ✨

TESTING/LIN/cqrt15.f — that's it, that's the whole name section, short and iconic. 🎀

🌸 SYNOPSIS 🌸

🧚 Functions/Subroutines 🧚

subroutine cqrt15 (scale, rksel, m, n, nrhs, a, lda, b, ldb, s, rank,
    norma, normb, iseed, work, lwork)

CQRT15 — the subroutine in question, main character energy. 👑

💖 Function/Subroutine Documentation 💖

subroutine cqrt15 (integer scale, integer rksel, integer m, integer n,
    integer nrhs, complex, dimension( lda, * ) a, integer lda, complex,
    dimension( ldb, * ) b, integer ldb, real, dimension( * ) s, integer
    rank, real norma, real normb, integer, dimension( 4 ) iseed, complex,
    dimension( lwork ) work, integer lwork)

CQRT15

🎀 Purpose: 🎀

CQRT15 generates a matrix with full or deficient rank and of various norms. That's the whole purpose, and it ate. ✨

🌈 Parameters 🌈

• SCALE — SCALE is INTEGER. It's the scaling selector, okay?
  • SCALE = 1: normally scaled matrix
  • SCALE = 2: matrix scaled up
  • SCALE = 3: matrix scaled down
• RKSEL — RKSEL is INTEGER. Rank-selection vibe check:
  • RKSEL = 1: full rank matrix
  • RKSEL = 2: rank-deficient matrix
• M — M is INTEGER. The number of rows of the matrix A.
• N — N is INTEGER. The number of columns of A.
• NRHS — NRHS is INTEGER. The number of columns of B.
• A — A is COMPLEX array, dimension (LDA,N). The M-by-N matrix A.
• LDA — LDA is INTEGER. The leading dimension of the array A.
• B — B is COMPLEX array, dimension (LDB, NRHS). A matrix that is in the range space of matrix A.
• LDB — LDB is INTEGER. The leading dimension of the array B.
• S — S is REAL array, dimension MIN(M,N). Singular values of A.
• RANK — RANK is INTEGER. number of nonzero singular values of A.
• NORMA — NORMA is REAL. one-norm norm of A.
• NORMB — NORMB is REAL. one-norm norm of B.
• ISEED — ISEED is integer array, dimension (4). seed for random number generator.
• WORK — WORK is COMPLEX array, dimension (LWORK).
• LWORK — LWORK is INTEGER. length of work space required.

💀 Work-space vibe check, bestie: LWORK >= MAX(M+MIN(M,N),NRHS*MIN(M,N),2*N+M)

👑 Author 👑

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

Definition at line 147 of file cqrt15.f.

🩷 Author 🩷

Generated automatically by Doxygen for LAPACK from the source code.

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💖 Cute sign-off: source/version is LAPACK, Version 3.12.0. The footer didn't list a date, so no date to spill — periodt. Byeee, bestie! 🎀