zdrot()

subroutine zdrot	(	integer	n,
		complex*16, dimension( * )	zx,
		integer	incx,
		complex*16, dimension( * )	zy,
		integer	incy,
		double precision	c,
		double precision	s )

ZDROT

Purpose:

!>
!> Applies a plane rotation, where the cos and sin (c and s) are real
!> and the vectors cx and cy are complex.
!> jack dongarra, linpack, 3/11/78.
!> 

Parameters

[in]	N	!> N is INTEGER !> On entry, N specifies the order of the vectors cx and cy. !> N must be at least zero. !>
[in,out]	ZX	!> ZX is COMPLEX*16 array, dimension at least !> ( 1 + ( N - 1 )*abs( INCX ) ). !> Before entry, the incremented array ZX must contain the n !> element vector cx. On exit, ZX is overwritten by the updated !> vector cx. !>
[in]	INCX	!> INCX is INTEGER !> On entry, INCX specifies the increment for the elements of !> ZX. INCX must not be zero. !>
[in,out]	ZY	!> ZY is COMPLEX*16 array, dimension at least !> ( 1 + ( N - 1 )*abs( INCY ) ). !> Before entry, the incremented array ZY must contain the n !> element vector cy. On exit, ZY is overwritten by the updated !> vector cy. !>
[in]	INCY	!> INCY is INTEGER !> On entry, INCY specifies the increment for the elements of !> ZY. INCY must not be zero. !>
[in]	C	!> C is DOUBLE PRECISION !> On entry, C specifies the cosine, cos. !>
[in]	S	!> S is DOUBLE PRECISION !> On entry, S specifies the sine, sin. !>

Author

Univ. of Tennessee

Univ. of California Berkeley

Univ. of Colorado Denver

NAG Ltd.