slar2v.f(3) LAPACK slar2v.f(3)NAMEslar2v.f-
SYNOPSIS
Functions/Subroutines
subroutine slar2v (N, X, Y, Z, INCX, C, S, INCC)
SLAR2V applies a vector of plane rotations with real cosines and
real sines from both sides to a sequence of 2-by-2
symmetric/Hermitian matrices.
Function/Subroutine Documentation
subroutine slar2v (integerN, real, dimension( * )X, real, dimension( * )Y,
real, dimension( * )Z, integerINCX, real, dimension( * )C, real,
dimension( * )S, integerINCC)
SLAR2V applies a vector of plane rotations with real cosines and real
sines from both sides to a sequence of 2-by-2 symmetric/Hermitian
matrices.
Purpose:
SLAR2V applies a vector of real plane rotations from both sides to
a sequence of 2-by-2 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 REAL array,
dimension (1+(N-1)*INCX)
The vector x.
Y
Y is REAL array,
dimension (1+(N-1)*INCX)
The vector y.
Z
Z is REAL array,
dimension (1+(N-1)*INCX)
The vector z.
INCX
INCX is INTEGER
The increment between elements of X, Y and Z. INCX > 0.
C
C is REAL array, dimension (1+(N-1)*INCC)
The cosines of the plane rotations.
S
S is REAL array, dimension (1+(N-1)*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 slar2v.f.
Author
Generated automatically by Doxygen for LAPACK from the source code.
Version 3.4.2 Sat Nov 16 2013 slar2v.f(3)
