BLAS/SRC/cscal.f(3)

✨ BLAS/SRC/cscal.f ✨

okay bestie, welcome to the <pink>cscal</pink> files 💖 this is the LAPACK BLAS corner of the internet, and today we're scaling complex vectors. no cap.

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🌸 NAME 🌸

BLAS/SRC/cscal.f — that's the file, that's the whole vibe 🫶

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🎀 SYNOPSIS 🎀

Functions/Subroutines

• subroutine cscal (n, ca, cx, incx) — CSCAL 💅

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🦋 Function/Subroutine Documentation 🦋

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

CSCAL ✨

🌈 Purpose:

CSCAL scales a vector by a constant. that's it. that's the whole job. iconic behavior honestly 💅

🍓 Parameters

• N — N is INTEGER. it's the number of elements in input vector(s), so like, how many lil guys we're working with 🧚
• CA — CA is COMPLEX. On entry, CA specifies the scalar alpha. so CA is literally the number we're multiplying everything by 💖
• CX — CX is COMPLEX array, dimension ( 1 + ( N - 1 )*abs( INCX ) ). look at that dimension expression, she's giving math, she's giving precision, we love her 🎀
• INCX — INCX is INTEGER. storage spacing between elements of CX, aka how far apart the elements are chilling in memory 👑

🌟 Author

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

the academic royalty lineup, periodt 👑

💜 Further Details:

         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(*)

okay so the lore: jack dongarra dropped this in linpack on 3/11/78, then in 3/93 they added a return for when incx .le. 0 (early exit, we stan a guard clause), and then on 12/3/93 the array(1) declarations got switched to array(*) 🔥

Definition at line 77 of file cscal.f.

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💖 Author 💖

Generated automatically by Doxygen for LAPACK from the source code. yeah, a robot wrote this one, but it ate anyway 🤖✨

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Version 3.12.0 — Tue Nov 28 2023 12:08:41 — BLAS/SRC/cscal.f(3)

and that's the whole page bestie 🫶 go forth and scale some complex vectors, iykyk 💅🌟