/home/abui...SRC/ddot.f(3)

💅 ddot.f — Library Functions Manual 💅

okay so bestie, welcome to the /home/abui...SRC/ddot.f(3) page, which lowkey lives in the Library Functions Manual section of your terminal. we're about to learn about DDOT and honestly? she's iconic.

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✨ NAME ✨

/home/abuild/rpmbuild/BUILD/lapack-static-3.12.0-build/lapack-3.12.0/BLAS/SRC/ddot.f

like, that's literally the whole path. yes it's a lot. yes it's the whole name. we don't make the rules 🎀

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🌸 SYNOPSIS 🌸

Functions/Subroutines

double precision function DDOT (n, dx, incx, dy, incy)

DDOT — that's her. that's the function. main character energy fr fr.

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🦋 Function/Subroutine Documentation 🦋

here's the full signature, character for character, no cap:

double precision function DDOT (integer n, double precision, dimension(*)
dx, integer incx, double precision, dimension(*) dy, integer incy)

DDOT 💖

🎀 Purpose:

!>
!>    DDOT forms the dot product of two vectors.
!>    uses unrolled loops for increments equal to one.
!>

so basically she forms the dot product of two vectors, and — fun fact — she uses unrolled loops for increments equal to one. the optimization is giving efficient. obsessed. 🔥

🌈 Parameters

• N — N is INTEGER, and it's the number of elements in input vector(s). that's how many lil elements are in your vector(s), bestie.

!>          N is INTEGER
!>         number of elements in input vector(s)
!>

• DX — DX is DOUBLE PRECISION array, dimension ( 1 + ( N - 1 )*abs( INCX ) ). note the dimension formula, don't lose it 💅

!>          DX is DOUBLE PRECISION array, dimension ( 1 + ( N - 1 )*abs( INCX ) )
!>

• INCX — INCX is INTEGER, and it's the storage spacing between elements of DX. that's the stride, girlie. how far apart the DX girlies are sitting.

!>          INCX is INTEGER
!>         storage spacing between elements of DX
!>

• DY — DY is DOUBLE PRECISION array, dimension ( 1 + ( N - 1 )*abs( INCY ) ). different formula, different index variable, keep up 🫶

!>          DY is DOUBLE PRECISION array, dimension ( 1 + ( N - 1 )*abs( INCY ) )
!>

• INCY — INCY is INTEGER, the storage spacing between elements of DY. same vibe as INCX but for DY. periodt.

!>          INCY is INTEGER
!>         storage spacing between elements of DY
!>

👑 Author

the whole squad wrote this one:

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

⭐ Further Details:

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

so jack dongarra, linpack, 3/11/78 — and then modified 12/3/93, array(1) declarations changed to array(*). she's been through a glow-up, we love a history moment 🧚

definition at line 81 of file ddot.f. remember that number, it might come up. 💀

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💜 Author (again, bestie)

Generated automatically by Doxygen for LAPACK from the source code. so nobody hand-wrote this page — Doxygen did it. slay, I guess. 🙈

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and that's the whole page! 💖

LAPACK — Version 3.12.0 — /home/abui...SRC/ddot.f(3) 🦋

mwah, bye bestie, go dot-product something 🌸