SSPTRS(3)

💖 NAME 💖

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

okay bestie, quick vibe check: this is SSPTRS(3) from the Library Functions Manual, and the file path for this page is /home/abui...RC/ssptrs.f(3). She's an iconic LAPACK subroutine and we're about to read her whole card. 💅

✨ SYNOPSIS ✨

🧩 Functions/Subroutines 🧩

       subroutine SSPTRS (uplo, n, nrhs, ap, ipiv, b, ldb, info)
           SSPTRS

🫶 Function/Subroutine Documentation 🫶

   subroutine SSPTRS (character uplo, integer n, integer nrhs, real, dimension(
       * ) ap, integer, dimension( * ) ipiv, real, dimension( ldb, * ) b,
       integer ldb, integer info)
       SSPTRS

🎯 Purpose 🎯

SSPTRS solves a system of linear equations A*X = B with a real symmetric matrix A stored in packed format using the factorization A = U*D*U**T or A = L*D*L**T computed by SSPTRF. no cap, that's the whole purpose and she ate. 💖

🎀 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. 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.
• AP — AP is REAL 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 SSPTRF, stored as a packed triangular matrix.
• IPIV — IPIV is INTEGER array, dimension (N). Details of the interchanges and the block structure of D as determined by SSPTRF.
• B — B is REAL array, dimension (LDB,NRHS). On entry, the right hand side matrix B. On exit, the solution matrix X.
• 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.

👑 Author 👑

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

Definition at line 114 of file ssptrs.f.

📜 Author 📜

Generated automatically by Doxygen for LAPACK from the source code.

okay that's the whole page, bestie 🫶 — LAPACK Version 3.12.0, /home/abui...RC/ssptrs.f(3). slay 💅✨