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

💅 NAME 💅

/home/abuild/rpmbuild/BUILD/lapack-static-3.12.0-build/lapack-3.12.0/SRC/chetrs_rook.f

okay so bestie, this is an LAPACK library functions manual page (section 3, chetrs_rook.f) and it's literally the whole glow-up of a Fortran source file's documentation ✨

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🦋 SYNOPSIS 🦋

Functions/Subroutines

• subroutine CHETRS_ROOK (uplo, n, nrhs, a, lda, ipiv, b, ldb, info) — CHETRS_ROOK computes the solution to a system of linear equations A * X = B for HE matrices using factorization obtained with one of the bounded diagonal pivoting methods (max 2 interchanges)

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👑 Function/Subroutine Documentation 👑

subroutine CHETRS_ROOK (character uplo, integer n, integer nrhs, complex,
    dimension( lda, * ) a, integer lda, integer, dimension( * ) ipiv,
    complex, dimension( ldb, * ) b, integer ldb, integer info)

CHETRS_ROOK computes the solution to a system of linear equations A * X = B for HE matrices using factorization obtained with one of the bounded diagonal pivoting methods (max 2 interchanges) 💖

🎀 Purpose: 🎀

!>
!> CHETRS_ROOK solves a system of linear equations A*X = B with a complex
!> Hermitian matrix A using the factorization A = U*D*U**H or
!> A = L*D*L**H computed by CHETRF_ROOK.
!>

periodt. that's the whole job, and she does it flawlessly 🫶

🌸 Parameters 🌸

• UPLO

!>          UPLO is CHARACTER*1
!>          Specifies whether the details of the factorization are stored
!>          as an upper or lower triangular matrix.
!>          = 'U':  Upper triangular, form is A = U*D*U**H;
!>          = 'L':  Lower triangular, form is A = L*D*L**H.
!>

• N

!>          N is INTEGER
!>          The order of the matrix A.  N >= 0.
!>

• NRHS

!>          NRHS is INTEGER
!>          The number of right hand sides, i.e., the number of columns
!>          of the matrix B.  NRHS >= 0.
!>

• A

!>          A is COMPLEX array, dimension (LDA,N)
!>          The block diagonal matrix D and the multipliers used to
!>          obtain the factor U or L as computed by CHETRF_ROOK.
!>

• LDA

!>          LDA is INTEGER
!>          The leading dimension of the array A.  LDA >= max(1,N).
!>

• IPIV

!>          IPIV is INTEGER array, dimension (N)
!>          Details of the interchanges and the block structure of D
!>          as determined by CHETRF_ROOK.
!>

• B

!>          B is COMPLEX array, dimension (LDB,NRHS)
!>          On entry, the right hand side matrix B.
!>          On exit, the solution matrix X.
!>

ngl this one's the main character moment: B walks in as the right hand side and struts out as the solution matrix X 💅 ate and left no crumbs.

• LDB

!>          LDB is INTEGER
!>          The leading dimension of the array B.  LDB >= max(1,N).
!>

• INFO

!>          INFO is INTEGER
!>          = 0:  successful exit
!>          < 0:  if INFO = -i, the i-th argument had an illegal value
!>

🚨 vibe check: INFO = 0 means slay, we're done. If INFO < 0, then INFO = -i and the i-th argument had an illegal value — yeah, somebody passed something unhinged. Read the params again bestie 😭

💜 Author 💜

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

🌈 Contributors: 🌈

!>
!>  November 2013,  Igor Kozachenko,
!>                  Computer Science Division,
!>                  University of California, Berkeley
!>
!>  September 2007, Sven Hammarling, Nicholas J. Higham, Craig Lucas,
!>                  School of Mathematics,
!>                  University of Manchester
!>
!>

the legends who made this happen 🔥 November 2013 and September 2007 eras, iconic behavior fr fr

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⭐ Definition ⭐

Definition at line 134 of file chetrs_rook.f.

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🧚 Author 🧚

Generated automatically by Doxygen for LAPACK from the source code.

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okay that's the whole page bestie, you're officially CHETRS_ROOK-pilled 💖✨🎀🦋🌸💅🫶

LAPACK, Version 3.12.0, page /home/abui...trs_rook.f(3) — that's the source/version and date stamp at the bottom, sign-off time, mwah 😘🌟