 LAPACK  3.4.2 LAPACK: Linear Algebra PACKage
slar2v.f File Reference

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## 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 ( integer N, real, dimension( * ) X, real, dimension( * ) Y, real, dimension( * ) Z, integer INCX, real, dimension( * ) C, real, dimension( * ) S, integer 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.

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:
 [in] N ``` N is INTEGER The number of plane rotations to be applied.``` [in,out] X ``` X is REAL array, dimension (1+(N-1)*INCX) The vector x.``` [in,out] Y ``` Y is REAL array, dimension (1+(N-1)*INCX) The vector y.``` [in,out] Z ``` Z is REAL array, dimension (1+(N-1)*INCX) The vector z.``` [in] INCX ``` INCX is INTEGER The increment between elements of X, Y and Z. INCX > 0.``` [in] C ``` C is REAL array, dimension (1+(N-1)*INCC) The cosines of the plane rotations.``` [in] S ``` S is REAL array, dimension (1+(N-1)*INCC) The sines of the plane rotations.``` [in] INCC ``` INCC is INTEGER The increment between elements of C and S. INCC > 0.```
Date:
September 2012

Definition at line 111 of file slar2v.f.

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