BLAS/SRC/cscal.f(3)

📦
version 3.12.1 · 4 versions
, in arch rolling

okay so this is the BLAS/SRC/cscal.f(3) page from the Library Functions Manual — welcome to the cscal cinematic universe, bestie 💖

🌈 NAME 🌈

BLAS/SRC/cscal.f — that's the name. literally it. no cap. 💅

This is the page for the cscal subroutine, which lives in the BLAS/SRC/cscal.f file. iconic file, iconic name, moving on. ✨

🎀 SYNOPSIS 🎀

Functions/Subroutines

  • subroutine cscal (n, ca, cx, incx) — CSCAL. the whole vibe. slay ✨

💖 Function/Subroutine Documentation 💖

Here's the full signature, exactly as it appears:

subroutine cscal (integer n, complex ca, complex, dimension(*) cx, integer incx)

CSCAL. That's the name of the game. 🎮

✨ Purpose ✨

The source doc block says:

!>
!>    CSCAL scales a vector by a constant.
!>

Translation: it scales a vector by a constant, bestie. That's the whole purpose. periodt. 💅

🌸 Parameters 🌸

  • N — INTEGER. number of elements in input vector(s) — literally how many elements are in your input vector(s), bestie. 💖
  • CA — COMPLEX. On entry, CA specifies the scalar alpha. — the scalar alpha itself, no cap. ✨
  • CX — COMPLEX array, dimension ( 1 + ( N - 1 )*abs( INCX ) ) — the array, sized exactly like that. no notes. 🌸
  • INCX — INTEGER. storage spacing between elements of CX — the spacing between your CX elements, iykyk. 🦋

👑 Author 👑

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

the whole squad, fr fr. 🫶

🔥 Further Details 🔥

The lore, exactly as written:

!>
!>     jack dongarra, linpack,  3/11/78.
!>     modified 3/93 to return if incx .le. 0.
!>     modified 12/3/93, array(1) declarations changed to array(*)
!>

So: originally by jack dongarra, linpack, 3/11/78. Then modified 3/93 to return if incx .le. 0 — yep, if incx is less than or equal to 0, it returns early. Then modified 12/3/93, array(1) declarations changed to array(*). that's the lore. 📜✨

Definition at line 77 of file cscal.f. slay. 💅

🫶 Author 🫶

Generated automatically by Doxygen for LAPACK from the source code. — not me, not you, Doxygen. 😭💖

source/version/page check: the footer says LAPACK, Version 3.12.0, and BLAS/SRC/cscal.f(3) — that's the whole combo. bye bestie, go scale some vectors. 🌈💜

📦 where this page comes from