SRC/slascl2.f(3)

📦
version 3.12.1 · 4 versions
, in arch rolling

💅 SRC/slascl2.f — a whole manual page, bestie

ok so this is the slascl2.f page from the LAPACK library manual. it's a Fortran thing. it's giving "linear algebra but make it fashion". stay with me 🫶

✨ NAME ✨

SRC/slascl2.f — that's the file, that's the name, periodt.

🌸 SYNOPSIS 🌸

Functions/Subroutines

  • subroutine slascl2 (m, n, d, x, ldx) — SLASCL2 performs diagonal scaling on a matrix.

🎀 Function/Subroutine Documentation 🎀

subroutine slascl2 (integer m, integer n, real, dimension( * ) d, real,
    dimension( ldx, * ) x, integer ldx)

SLASCL2 performs diagonal scaling on a matrix. that's the whole vibe, honestly.

🔥 Purpose:

!>
!> SLASCL2 performs a diagonal scaling on a matrix:
!>   x <-- D * x
!> where the diagonal matrix D is stored as a vector.
!>
!> Eventually to be replaced by BLAS_sge_diag_scale in the new BLAS
!> standard.
!>

so like, x <-- D * x, no cap. the diagonal matrix D is stored as a vector (iconic, efficient, we love a glow-up). and heads up 👀 — this routine is eventually to be replaced by BLAS_sge_diag_scale in the new BLAS standard. so it's on its way out but still main character for now 💀

🦋 Parameters 🦋

  • M — okay so M is INTEGER, and it's the number of rows of D and X. the rule: M >= 0. respect the constraint bestie 🙈
  • N — N is INTEGER too, and it's the number of columns of X. rule: N >= 0 ✨
  • D — D is a REAL array of length M. it's the diagonal matrix D, stored as a vector of length M. little vector, big responsibilities 💖
  • X — X is a REAL array, dimension (LDX,N). on entry it's the matrix X that you're about to scale by D; on exit it's the scaled matrix. glow-up complete 💅
  • LDX — LDX is INTEGER and it's the leading dimension of the matrix X. the rule here is LDX >= M. do not mess with it, fr fr 🫶

👑 Author 👑

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

the whole squad, honestly. four institutions pulling up together 🌈

Definition at line 89 of file slascl2.f. 📍

⭐ Author ⭐

Generated automatically by Doxygen for LAPACK from the source code. not a human, not a vibe checker, just a doc generator doing its thing 🧚

ngl the !> comments in there are Doxygen markup — that's why the whole purpose block looks like that. it's not a typo, it's just how the docs get milked out of the source 🍓

and that's the page!! LAPACK Version 3.12.0, date stamp says SRC/slascl2.f(3) — hope this helped, mwah 💜🌸

📦 where this page comes from