SRC/dlargv.f(3)

💖 SRC/dlargv.f 💖

hey bestie!! ✨ so you're looking at the manual for SRC/dlargv.f from the LAPACK library — it's giving "I'm a Fortran file, but make it fashion" 💅 let's get into it!!

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🌸 SYNOPSIS 🌸

Functions/Subroutines

• subroutine dlargv (n, x, incx, y, incy, c, incc) — DLARGV generates a vector of plane rotations with real cosines and real sines. no cap, that's literally the whole vibe 🫶

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✨ Function/Subroutine Documentation ✨

subroutine dlargv (integer n, double precision, dimension( * ) x, integer
    incx, double precision, dimension( * ) y, integer incy, double
    precision, dimension( * ) c, integer incc)

okay so this icon 👑 DLARGV generates a vector of plane rotations with real cosines and real sines. periodt.

🦋 Purpose 🦋

!>
!> DLARGV generates a vector of real plane rotations, determined by
!> elements of the real vectors x and y. For i = 1,2,...,n
!>
!>    (  c(i)  s(i) ) ( x(i) ) = ( a(i) )
!>    ( -s(i)  c(i) ) ( y(i) ) = (   0  )
!>

lowkey iconic — so for each i = 1,2,...,n, it's building a little rotation matrix from the pieces of x and y, and the result is a(i) on top and 0 on the bottom. the way that matrix just works 😭🔥

🌈 Parameters 🌈

• N

!>          N is INTEGER
!>          The number of plane rotations to be generated.

ngl this is just how many plane rotations you're generating. the more the merrier bestie 💅

• X

!>          X is DOUBLE PRECISION array,
!>                         dimension (1+(N-1)*INCX)
!>          On entry, the vector x.
!>          On exit, x(i) is overwritten by a(i), for i = 1,...,n.

your x vector! on entry it's the vector x, but heads up — on exit, x(i) gets overwritten by a(i) for i = 1,...,n. it's giving "I'm not the same person I was before" 🙈

• INCX

!>          INCX is INTEGER
!>          The increment between elements of X. INCX > 0.

the increment between elements of X. and fr fr, INCX > 0 — don't play with that.

• Y

!>          Y is DOUBLE PRECISION array,
!>                         dimension (1+(N-1)*INCY)
!>          On entry, the vector y.
!>          On exit, the sines of the plane rotations.

your y vector! on entry it's the vector y, on exit it's literally the sines of the plane rotations. main character transformation energy ⭐

• INCY

!>          INCY is INTEGER
!>          The increment between elements of Y. INCY > 0.

the increment between elements of Y. and yes, INCY > 0. periodt.

• C

!>          C is DOUBLE PRECISION array, dimension (1+(N-1)*INCC)
!>          The cosines of the plane rotations.

this is where the cosines of the plane rotations live. slay 💖

• INCC

!>          INCC is INTEGER
!>          The increment between elements of C. INCC > 0.

the increment between elements of C. and yeah, INCC > 0 bestie, keep it positive ✨

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👑 Author 👑

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

the whole academic squad came together for this one 🫶🎀

Definition at line 103 of file dlargv.f. — iykyk 💅

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💜 Author 💜

Generated automatically by Doxygen for LAPACK from the source code.

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🍓 okay that's the whole page bestie!! no notes, it ate and left no crumbs 🔥

LAPACK — Version 3.12.0 — SRC/dlargv.f(3)

love u, bye!! 💖✨🎀🦋🌸💅🫶😭🔥👑🌈⭐💀🙈🍓🧚💜