SRC/cla_porcond_x.f(3)

💖 NAME 💖

SRC/cla_porcond_x.f — bestie, this is the page for that file, and the manual name is Library Functions Manual (fancy, I know). The page is SRC/cla_porcond_x.f(3), iykyk. 💅

✨ SYNOPSIS ✨

🧚 Functions/Subroutines 🧚

Here's the function, no cap:

real function cla_porcond_x (uplo, n, a, lda, af, ldaf, x, info, work,
    rwork)

CLA_PORCOND_X computes the infinity norm condition number of op(A)*diag(x) for Hermitian positive-definite matrices. Slay. ✨

🔥 Function/Subroutine Documentation 🔥

Full signature, exactly as requested:

real function cla_porcond_x (character uplo, integer n, complex, dimension(
    lda, * ) a, integer lda, complex, dimension( ldaf, * ) af, integer ldaf,
    complex, dimension( * ) x, integer info, complex, dimension( * ) work,
    real, dimension( * ) rwork)

CLA_PORCOND_X computes the infinity norm condition number of op(A)*diag(x) for Hermitian positive-definite matrices. That's the main character energy of this routine. 💖

🎀 Purpose 🎀

CLA_PORCOND_X computes the infinity norm condition number of op(A) * diag(X) where X is a COMPLEX vector. That's the assignment, bestie — no extra lore. 🫶

🍓 Parameters 🍓

• UPLO — is a CHARACTER*1. = 'U': Upper triangle of A is stored; = 'L': Lower triangle of A is stored. 🦋
• N — is an INTEGER. The number of linear equations, i.e., the order of the matrix A. N >= 0.
• A — is a COMPLEX array, dimension (LDA,N). On entry, the N-by-N matrix A.
• LDA — is an INTEGER. The leading dimension of the array A. LDA >= max(1,N).
• AF — is a COMPLEX array, dimension (LDAF,N). The triangular factor U or L from the Cholesky factorization A = U**H*U or A = L*L**H, as computed by CPOTRF. 🌸
• LDAF — is an INTEGER. The leading dimension of the array AF. LDAF >= max(1,N).
• X — is a COMPLEX array, dimension (N). The vector X in the formula op(A) * diag(X).
• INFO — is an INTEGER. = 0: Successful exit. i > 0: The ith argument is invalid. 💀
• WORK — is a COMPLEX array, dimension (2*N). Workspace.
• RWORK — is a REAL array, dimension (N). Workspace.

👑 Author 👑

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

Definition at line 121 of file cla_porcond_x.f.

🤖 Author 🤖

Generated automatically by Doxygen for LAPACK from the source code. Yes, the robots wrote this bit — iconic. 🤖✨

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💖 Cute little sign-off: this page says LAPACK Version 3.12.0 and points at SRC/cla_porcond_x.f(3); the footer doesn't list a separate date, bestie, so that's the source/version tea. Periodt. 🫶✨