LAPACK  3.7.0
LAPACK: Linear Algebra PACKage

§ drotg()

subroutine drotg ( double precision  DA,
double precision  DB,
double precision  C,
double precision  S 
)

DROTG

Purpose: 
    DROTG construct givens plane rotation.
Author
Univ. of Tennessee
Univ. of California Berkeley
Univ. of Colorado Denver
NAG Ltd.
Date
December 2016
Further Details: 
     jack dongarra, linpack, 3/11/78.