/home/abui...D/sgelqs.f(3)

🌸 NAME 🌸

Bestie, this is the Library Functions Manual page, and the name on the tin is literally this source path: /home/abuild/rpmbuild/BUILD/lapack-static-3.12.0-build/lapack-3.12.0/SRC/DEPRECATED/sgelqs.f. No cap. 💅

✨ SYNOPSIS ✨

🧚 Functions/Subroutines 🧚

• subroutine SGELQS (m, n, nrhs, a, lda, tau, b, ldb, work, lwork, info) — SGELQS

💖 Function/Subroutine Documentation 💖

Here's the full signature, copied exactly because we do not mess with code, periodt:

   subroutine SGELQS (integer m, integer n, integer nrhs, real, dimension( lda,
       * ) a, integer lda, real, dimension( * ) tau, real, dimension( ldb, * )
       b, integer ldb, real, dimension( lwork ) work, integer lwork, integer
       info)

SGELQS

🎀 Purpose 🎀

Okay so this subroutine computes a minimum-norm solution:

min || A*X - B ||

using the LQ factorization:

A = L*Q

computed by SGELQF. That's the whole vibe. ✨

🌈 Parameters 🌈

• M — M is INTEGER. The number of rows of the matrix A. M >= 0.
• N — N is INTEGER. The number of columns of the matrix A. N >= M >= 0.
• NRHS — NRHS is INTEGER. The number of columns of B. NRHS >= 0.
• A — A is REAL array, dimension (LDA,N). Details of the LQ factorization of the original matrix A as returned by SGELQF.
• LDA — LDA is INTEGER. The leading dimension of the array A. LDA >= M.
• TAU — TAU is REAL array, dimension (M). Details of the orthogonal matrix Q.
• B — B is REAL array, dimension (LDB,NRHS). On entry, the m-by-nrhs right hand side matrix B. On exit, the n-by-nrhs solution matrix X.
• LDB — LDB is INTEGER. The leading dimension of the array B. LDB >= N.
• WORK — WORK is REAL array, dimension (LWORK).
• LWORK — LWORK is INTEGER. The length of the array WORK. LWORK must be at least NRHS, and should be at least NRHS*NB, where NB is the block size for this environment.
• 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 119 of file sgelqs.f.

👑 Author 👑

Generated automatically by Doxygen for LAPACK from the source code.

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okay bye bestie 💖 — this page is from LAPACK, version 3.12.0, and the file is /home/abui...D/sgelqs.f(3). slay! 🎀