BLAS/SRC/dzasum.f(3)

NAME 💖

BLAS/SRC/dzasum.f — bestie, this is the LAPACK page for dzasum, and it's literally just one iconic little function. We're in the BLAS/SRC directory, the file is dzasum.f, and it's giving "small but mighty." ✨

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SYNOPSIS 🦋

Functions/Subroutines

double precision function dzasum (n, zx, incx)
    DZASUM

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Function/Subroutine Documentation 🌸

double precision function dzasum (integer n, complex*16, dimension(*) zx,
    integer incx)

DZASUM 👑

Purpose

Okay so here's the whole vibe: DZASUM takes the sum of the (|Re(.)| + |Im(.)|)'s of a complex vector and returns a double precision result. That's it. That's the function. Absolute main character energy for a sum. 💅

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Parameters 🎀

• N — N is INTEGER. It's the number of elements in the input vector(s), bestie. Count them. 🔢
• ZX — ZX is COMPLEX*16 array, with dimension ( 1 + ( N - 1 )*abs( INCX ) ). Yes the dimension expression is exactly that, don't come for me, it's the stride math. 💖
• INCX — INCX is INTEGER, the storage spacing between elements of ZX. Basically how far apart your girl's elements are living from each other. ✨

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Author 🫶

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

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Further Details 🌈

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

Heads up bestie: incx .le. 0 makes it return — that's the 3/93 glow-up. The 12/3/93 one swapped array(1) declarations for array(*). Iconic history, no cap. 💀

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Definition at line 71 of file dzasum.f. 📍

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Author 🧚

Generated automatically by Doxygen for LAPACK from the source code. Not a human wrote this part, it's literally the robot doing its thing. 🤖✨

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

Okay that's the whole page, bestie — go sum some absolute values of real and imaginary parts, you absolute legend. 💜 Slay, stay safe, and remember: incx .le. 0 means bye bye. 👑