BLAS/SRC/isamax.f(3)

📦
version 3.12.0 · 7 versions
, in centos-stream 10, fedora 43, fedora 44

✨ NAME ✨

okay so bestie, this page is all about BLAS/SRC/isamax.f — like, that's the whole vibe of the name section, no cap 💖

🌸 SYNOPSIS 🌸

Functions/Subroutines

  • integer function isamax (n, sx, incx) — ISAMAX 👑

🦋 Function/Subroutine Documentation 🦋

integer function isamax (integer n, real, dimension(*) sx, integer incx)

ISAMAX. that's it. that's the function. iconic behavior honestly 💅

Purpose:

ISAMAX finds the index of the first element having maximum absolute value.

not me being dramatic but the word first is doing SO much heavy lifting here — if two elements tie for the biggest absolute value, you get the earlier one, periodt 🔥

Parameters

  • N — N is INTEGER. it's the number of elements in the input vector(s), fr fr.
  • SX — SX is REAL array, dimension ( 1 + ( N - 1 )*abs( INCX ) ). lowkey a whole formula, but it's just saying how much room she takes up 🎀
  • INCX — INCX is INTEGER. it's the storage spacing between elements of SX — like, how far apart the squad members are standing from each other 🫶

Author

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

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(*)
the receipts!! 📜 three separate glow-ups on the record: born 3/11/78, then 3/93 gave her the early-return-if-incx .le. 0 behavior, then 12/3/93 swapped the array(1) declarations for array(*). a legend with a revision history 💜

Definition at line 70 of file isamax.f.

👑 Author 👑

Generated automatically by Doxygen for LAPACK from the source code. (yes, the robots did this one, and honestly? they ate 🤖✨)

that's the whole page bestie, and here's the cute lil sign-off: this is Version 3.12.0, dated Tue Nov 28 2023 12:08:41, and it belongs to BLAS/SRC/isamax.f(3). bye babes, go find that max 🌈💖

📦 where this page comes from