clar2v()

subroutine clar2v	(	integer	n,
		complex, dimension( * )	x,
		complex, dimension( * )	y,
		complex, dimension( * )	z,
		integer	incx,
		real, dimension( * )	c,
		complex, dimension( * )	s,
		integer	incc )

CLAR2V applies a vector of plane rotations with real cosines and complex sines from both sides to a sequence of 2-by-2 symmetric/Hermitian matrices.

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Purpose:

!>
!> CLAR2V applies a vector of complex plane rotations with real cosines
!> from both sides to a sequence of 2-by-2 complex Hermitian matrices,
!> defined by the elements of the vectors x, y and z. For i = 1,2,...,n
!>
!>    (       x(i)  z(i) ) :=
!>    ( conjg(z(i)) y(i) )
!>
!>      (  c(i) conjg(s(i)) ) (       x(i)  z(i) ) ( c(i) -conjg(s(i)) )
!>      ( -s(i)       c(i)  ) ( conjg(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 COMPLEX array, dimension (1+(N-1)*INCX) !> The vector x; the elements of x are assumed to be real. !>
[in,out]	Y	!> Y is COMPLEX array, dimension (1+(N-1)*INCX) !> The vector y; the elements of y are assumed to be real. !>
[in,out]	Z	!> Z is COMPLEX 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 COMPLEX 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. !>

Author

Univ. of Tennessee

Univ. of California Berkeley

Univ. of Colorado Denver

NAG Ltd.