SLARGV(3)

💖 SLARGV(3) 💖

okay so this page is from the Library Functions Manual, and it’s giving very “small Fortran routine, big rotation energy.” No cap, we’re about to make plane rotations make sense. ✨

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🌸 NAME 🌸

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

that’s the whole NAME, bestie — just the source file path, no extra lore. 💅

✨ SYNOPSIS ✨

Functions/Subroutines

subroutine SLARGV (n, x, incx, y, incy, c, incc)

SLARGV generates a vector of plane rotations with real cosines and real sines. periodt. 🫶

🎀 Function/Subroutine Documentation 🎀

subroutine SLARGV (integer n, real, dimension( * ) x, integer incx, real, dimension( * ) y, integer incy, real, dimension( * ) c, integer incc)

SLARGV generates a vector of plane rotations with real cosines and real sines.

Purpose

!>
!> SLARGV 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  )
!>

like, it’s literally building rotations from x and y, and the math is right there in the little matrix moment. iconic. 🔥

Parameters

• N — N is INTEGER; it’s the number of plane rotations to be generated. ✨
• X — X is a REAL array, dimension (1+(N-1)*INCX). On entry, it’s the vector x. On exit, x(i) is overwritten by a(i), for i = 1,...,n. 💅
• INCX — INCX is INTEGER; the increment between elements of X. INCX > 0. 🦋
• Y — Y is a REAL array, dimension (1+(N-1)*INCY). On entry, it’s the vector y. On exit, it holds the sines of the plane rotations. 🌸
• INCY — INCY is INTEGER; the increment between elements of Y. INCY > 0. 🎀
• C — C is a REAL array, dimension (1+(N-1)*INCC). It holds the cosines of the plane rotations. 👑
• INCC — INCC is INTEGER; the increment between elements of C. INCC > 0. ⭐

Author

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

Definition at line 103 of file slargv.f.

🌟 Author 🌟

Generated automatically by Doxygen for LAPACK from the source code.

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💖 okay that’s the whole page, bestie — LAPACK Version 3.12.0, footer path /home/abui...RC/slargv.f(3). stay slay and keep those rotations real! 💖