/home/abui...yrcond_c.f(3)

🦋 zla_syrcond_c.f(3) — the glow-up edition

okay so bestie, gather round 💖 this one lives in the LAPACK Library Functions Manual, and its whole government name is literally the path /home/abuild/rpmbuild/BUILD/lapack-static-3.12.0-build/lapack-3.12.0/SRC/zla_syrcond_c.f — yes that's the actual title, no I'm not joking, they really said "the filepath IS the name" and honestly? iconic. 🎀

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✨ NAME ✨

/home/abuild/rpmbuild/BUILD/lapack-static-3.12.0-build/lapack-3.12.0/SRC/zla_syrcond_c.f — that's it, that's the name, she's a whole filesystem path and she's thriving 💅

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🌸 SYNOPSIS 🌸

Functions/Subroutines

double precision function ZLA_SYRCOND_C (uplo, n, a, lda, af, ldaf,
    ipiv, c, capply, info, work, rwork)

ZLA_SYRCOND_C computes the infinity norm condition number of op(A)*inv(diag(c)) for symmetric indefinite matrices. that's the whole vibe fr fr 🌈

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💜 Function/Subroutine Documentation 💜

double precision function ZLA_SYRCOND_C (character uplo, integer n,
    complex*16, dimension( lda, * ) a, integer lda, complex*16, dimension(
    ldaf, * ) af, integer ldaf, integer, dimension( * ) ipiv, double
    precision, dimension( * ) c, logical capply, integer info, complex*16,
    dimension( * ) work, double precision, dimension( * ) rwork)

ZLA_SYRCOND_C computes the infinity norm condition number of op(A)*inv(diag(c)) for symmetric indefinite matrices. slay 💅

Purpose:

!>
!>    ZLA_SYRCOND_C Computes the infinity norm condition number of
!>    op(A) * inv(diag(C)) where C is a DOUBLE PRECISION vector.
!>

literally that's the entire purpose statement, she's concise and she knows it ✨

Parameters

• UPLO — UPLO is CHARACTER*1, and it's giving "which triangle are we working with" energy:
  • = 'U': Upper triangle of A is stored;
  • = 'L': Lower triangle of A is stored.
• N — N is INTEGER. The number of linear equations, i.e. the order of the matrix A. and the rules are N >= 0 (no negativity allowed bestie 🚫).
• A — A is COMPLEX*16 array, dimension (LDA,N). On entry, the N-by-N matrix A. main character matrix energy 👑
• LDA — LDA is INTEGER. The leading dimension of the array A. She must satisfy LDA >= max(1,N). periodt.
• AF — AF is COMPLEX*16 array, dimension (LDAF,N). The block diagonal matrix D and the multipliers used to obtain the factor U or L as computed by ZSYTRF. it's giving "previously on ZSYTRF…" 🍓
• LDAF — LDAF is INTEGER. The leading dimension of the array AF, and it better hold up to LDAF >= max(1,N) 💀
• IPIV — IPIV is INTEGER array, dimension (N). Details of the interchanges and the block structure of D as determined by ZSYTRF. receipts, basically 🧾
• C — C is DOUBLE PRECISION array, dimension (N). The vector C in the formula op(A) * inv(diag(C)). that's her, that's the C in question 💖
• CAPPLY — CAPPLY is LOGICAL. If .TRUE. then access the vector C in the formula above. if false she simply does not look, respect the boundaries 🫶
• INFO — INFO is INTEGER:
  • = 0: Successful exit. 🎉
  • i > 0: The ith argument is invalid. 😭 (yes, i — that's literally what it says, don't come for me)
• WORK — WORK is COMPLEX*16 array, dimension (2*N). Workspace. a humble little scratchpad, 2N of them 🌸
• RWORK — RWORK is DOUBLE PRECISION array, dimension (N). Workspace. the double precision sibling of WORK, also just here to help ✨

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👑 Author 👑

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

the whole academic squad showed up for this one, ate and left no crumbs 🔥

Definition at line 137 of file zla_syrcond_c.f. iykyk 📍

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🌟 Author 🌟

Generated automatically by Doxygen for LAPACK from the source code. not me being auto-generated by Doxygen 😭 she's literally built different (by a doc generator).

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💀 quick vibe check: this page is LAPACK, Version 3.12.0, dated /home/abui...yrcond_c.f(3) — and that's the whole manual page bestie, no cap, every flag accounted for 🎀💖✨🦋🌸💅🫶