
dlar2v.f(3) LAPACK dlar2v.f(3)
NAME
dlar2v.f 
SYNOPSIS
Functions/Subroutines
subroutine dlar2v (N, X, Y, Z, INCX, C, S, INCC)
DLAR2V applies a vector of plane rotations with real cosines and real sines from both
sides to a sequence of 2by2 symmetric/Hermitian matrices.
Function/Subroutine Documentation
subroutine dlar2v (integerN, double precision, dimension( * )X, double precision, dimension( *
)Y, double precision, dimension( * )Z, integerINCX, double precision, dimension( * )C,
double precision, dimension( * )S, integerINCC)
DLAR2V applies a vector of plane rotations with real cosines and real sines from both
sides to a sequence of 2by2 symmetric/Hermitian matrices.
Purpose:
DLAR2V applies a vector of real plane rotations from both sides to
a sequence of 2by2 real symmetric matrices, defined by the elements
of the vectors x, y and z. For i = 1,2,...,n
( x(i) z(i) ) := ( c(i) s(i) ) ( x(i) z(i) ) ( c(i) s(i) )
( z(i) y(i) ) ( s(i) c(i) ) ( z(i) y(i) ) ( s(i) c(i) )
Parameters:
N
N is INTEGER
The number of plane rotations to be applied.
X
X is DOUBLE PRECISION array,
dimension (1+(N1)*INCX)
The vector x.
Y
Y is DOUBLE PRECISION array,
dimension (1+(N1)*INCX)
The vector y.
Z
Z is DOUBLE PRECISION array,
dimension (1+(N1)*INCX)
The vector z.
INCX
INCX is INTEGER
The increment between elements of X, Y and Z. INCX > 0.
C
C is DOUBLE PRECISION array, dimension (1+(N1)*INCC)
The cosines of the plane rotations.
S
S is DOUBLE PRECISION array, dimension (1+(N1)*INCC)
The sines of the plane rotations.
INCC
INCC is INTEGER
The increment between elements of C and S. INCC > 0.
Author:
Univ. of Tennessee
Univ. of California Berkeley
Univ. of Colorado Denver
NAG Ltd.
Date:
September 2012
Definition at line 111 of file dlar2v.f.
Author
Generated automatically by Doxygen for LAPACK from the source code.
Version 3.4.2 Tue Sep 25 2012 dlar2v.f(3) 
