zlartg.f - Online Linux Manual PageSection : 3
Updated : Tue Nov 14 2017
Source : Version 3.8.0
Note : LAPACK

NAMEzlartg.f

SYNOPSIS

Functions/Subroutinessubroutine zlartg (F, G, CS, SN, R)
ZLARTG generates a plane rotation with real cosine and complex sine​.

Function/Subroutine Documentation

subroutine zlartg (complex*16 F, complex*16 G, double precision CS, complex*16 SN, complex*16 R)ZLARTG generates a plane rotation with real cosine and complex sine​. Purpose: ZLARTG generates a plane rotation so that [ CS SN ] [ F ] [ R ] [ __ ] . [ ] = [ ] where CS**2 + |SN|**2 = 1. [ -SN CS ] [ G ] [ 0 ] This is a faster version of the BLAS1 routine ZROTG, except for the following differences: F and G are unchanged on return. If G=0, then CS=1 and SN=0. If F=0, then CS=0 and SN is chosen so that R is real.Parameters: F F is COMPLEX*16 The first component of vector to be rotated.
G
G is COMPLEX*16 The second component of vector to be rotated.
CS
CS is DOUBLE PRECISION The cosine of the rotation.
SN
SN is COMPLEX*16 The sine of the rotation.
R
R is COMPLEX*16 The nonzero component of the rotated vector.Author: Univ​. of Tennessee Univ​. of California Berkeley Univ​. of Colorado Denver NAG Ltd​. Date: December 2016 Further Details: 3-5-96 - Modified with a new algorithm by W. Kahan and J. Demmel This version has a few statements commented out for thread safety (machine parameters are computed on each entry). 10 feb 03, SJH.Definition at line 105 of file zlartg​.f​.

AuthorGenerated automatically by Doxygen for LAPACK from the source code​.
0
Johanes Gumabo
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