SRC/zheswapr.f(3)

🌸 NAME 🌸

Bestie, you're on the SRC/zheswapr.f(3) page from the Library Functions Manual — title/manual name folded in right here. The star of the show is SRC/zheswapr.f.

✨ SYNOPSIS ✨

🫶 Functions/Subroutines

subroutine zheswapr (uplo, n, a, lda, i1, i2)
    ZHESWAPR applies an elementary permutation on the rows and columns
    of a Hermitian matrix.

💅 Function/Subroutine Documentation 💅

🧚 subroutine zheswapr

subroutine zheswapr (character uplo, integer n, complex*16, dimension( lda, n ) a, integer lda, integer i1, integer i2)

Okay so ZHESWAPR applies an elementary permutation on the rows and columns of a Hermitian matrix.

🎀 Purpose

No cap, ZHESWAPR applies an elementary permutation on the rows and the columns of a hermitian matrix. That's the whole vibe.

🦋 Parameters

• UPLO — UPLO is CHARACTER*1. It 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**T;
  • = 'L': Lower triangular, form is A = L*D*L**T.
• N — N is INTEGER. It's the order of the matrix A. N >= 0.
• A — A is COMPLEX*16 array, dimension (LDA,N). On entry, it's the NB diagonal matrix D and the multipliers used to obtain the factor U or L as computed by CSYTRF.
  • On exit, if INFO = 0, it's the (symmetric) inverse of the original matrix. If UPLO = 'U', the upper triangular part of the inverse is formed and the part of A below the diagonal is not referenced; if UPLO = 'L', the lower triangular part of the inverse is formed and the part of A above the diagonal is not referenced.
• LDA — LDA is INTEGER. It's the leading dimension of the array A. LDA >= max(1,N).
• I1 — I1 is INTEGER. Index of the first row to swap.
• I2 — I2 is INTEGER. Index of the second row to swap.

👑 Author

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

Definition at line 101 of file zheswapr.f.

🌈 Author 🌈

Generated automatically by Doxygen for LAPACK from the source code.

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Signed off from the LAPACK corner of the group chat, bestie: source page SRC/zheswapr.f, page SRC/zheswapr.f(3), and LAPACK Version 3.12.0 — that's the footer vibe. 💜