ZHPTRS(3)

💅 NAME

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

This is the /home/abui...RC/zhptrs.f(3) page from the Library Functions Manual, bestie. 💖 Yes, we are doing packed complex Hermitian linear algebra today, and it's lowkey iconic.

✨ SYNOPSIS

Functions/Subroutines

• subroutine ZHPTRS (uplo, n, nrhs, ap, ipiv, b, ldb, info) — the ZHPTRS subroutine itself, serving main-character energy. 👑

🦋 Function/Subroutine Documentation

subroutine ZHPTRS (character uplo, integer n, integer nrhs, complex*16, dimension( * ) ap, integer, dimension( * ) ipiv, complex*16, dimension( ldb, * ) b, integer ldb, integer info)

ZHPTRS — that's the name, and it's literally here to solve your linear system, no cap. 🫶

🌸 Purpose:

okay so here's the tea: ZHPTRS solves a system of linear equations A*X = B with a complex Hermitian matrix A stored in packed format using the factorization A = U*D*U**H or A = L*D*L**H computed by ZHPTRF. That's the whole flex. ✨

🎀 Parameters

• UPLO — CHARACTER*1. Specifies whether the details of the factorization are stored as an upper or lower triangular matrix. The values are:
  • = 'U': Upper triangular, form is A = U*D*U**H;
  • = 'L': Lower triangular, form is A = L*D*L**H.
• N — INTEGER. The order of the matrix A. N >= 0.
• NRHS — INTEGER. The number of right hand sides, i.e., the number of columns of the matrix B. NRHS >= 0.
• AP — COMPLEX*16 array, dimension (N*(N+1)/2). The block diagonal matrix D and the multipliers used to obtain the factor U or L as computed by ZHPTRF, stored as a packed triangular matrix.
• IPIV — INTEGER array, dimension (N). Details of the interchanges and the block structure of D as determined by ZHPTRF.
• B — COMPLEX*16 array, dimension (LDB,NRHS). On entry, the right hand side matrix B. On exit, the solution matrix X.
• LDB — INTEGER. The leading dimension of the array B. LDB >= max(1,N).
• INFO — INTEGER. Exit status tea:
  • = 0: successful exit;
  • < 0: if INFO = -i, the i-th argument had an illegal value.

👑 Author

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

Definition at line 114 of file zhptrs.f.

💜 Author

Generated automatically by Doxygen for LAPACK from the source code.

---

LAPACK · Version 3.12.0 · /home/abui...RC/zhptrs.f(3) — that's the footer vibe, and we are so done here. bye bestie 💅✨