CXML
        	    
LAPACK version 3.0
zrot(3)

PURPOSE
  ZROT - applie a plane rotation, where the cos (C) is real and the sin (S)
  is complex, and the vectors CX and CY are complex

SYNTAX
  SUBROUTINE ZROT( N, CX, INCX, CY, INCY, C, S )

      INTEGER	   INCX, INCY, N

      DOUBLE	   PRECISION C

      COMPLEX*16   S

      COMPLEX*16   CX( * ), CY( * )

DESCRIPTION
  ZROT applies a plane rotation, where the cos (C) is real and the sin (S) is
  complex, and the vectors CX and CY are complex.

ARGUMENTS
  N	  (input) INTEGER
	  The number of elements in the vectors CX and CY.

  CX	  (input/output) COMPLEX*16 array, dimension (N)
	  On input, the vector X.  On output, CX is overwritten with C*X +
	  S*Y.

  INCX	  (input) INTEGER
	  The increment between successive values of CY.  INCX <> 0.

  CY	  (input/output) COMPLEX*16 array, dimension (N)
	  On input, the vector Y.  On output, CY is overwritten with
	  -CONJG(S)*X + C*Y.

  INCY	  (input) INTEGER
	  The increment between successive values of CY.  INCX <> 0.

  C	  (input) DOUBLE PRECISION
	  S	  (input) COMPLEX*16 C and S define a rotation [  C
	  S  ] [ -conjg(S)   C	] where C*C + S*CONJG(S) = 1.0.