ZSYSWAPR(3)

ZSYSWAPR(3) ✨

Okay so this is the zsyswapr.f(3) page from the Library Functions Manual — yes, the zsyswapr.f file itself, and it's serving Fortran linear-algebra realness. 💅

NAME 🌸

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

SYNOPSIS 🦋

Functions/Subroutines

   subroutine ZSYSWAPR (uplo, n, a, lda, i1, i2)
       ZSYSWAPR

Function/Subroutine Documentation 💅

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

Purpose ✨

Bestie, ZSYSWAPR applies an elementary permutation on the rows and the columns of a symmetric matrix. That's the whole gig. It's giving swap energy, and honestly? Iconic. 💖

Parameters 🎀

• UPLO — 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**T; = 'L': Lower triangular, form is A = L*D*L**T.
• N — INTEGER. The order of the matrix A. N >= 0.
• A — COMPLEX*16 array, dimension (LDA,*). On entry, the N-by-N matrix A. On exit, the permuted matrix where the rows I1 and I2 and columns I1 and I2 are interchanged. If UPLO = 'U', the interchanges are applied to the upper triangular part and the strictly lower triangular part of A is not referenced; if UPLO = 'L', the interchanges are applied to the lower triangular part and the part of A above the diagonal is not referenced. 🫶
• LDA — INTEGER. The leading dimension of the array A. LDA >= max(1,N).
• I1 — INTEGER. Index of the first row to swap.
• I2 — 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 99 of file zsyswapr.f.

Author 💜

This page was Generated automatically by Doxygen for LAPACK from the source code.

---

Okay bestie, that's the whole page! LAPACK Version 3.12.0, file /home/abui.../zsyswapr.f(3). The footer doesn't list a date, so no invented date energy — just source/version and the path, periodt. 💅✨