redhat man page for zlacrt

ZLACRT(l)								 )								 ZLACRT(l)

NAME
       ZLACRT - perform the operation  ( c s )( x ) ==> ( x ) ( -s c )( y ) ( y )  where c and s are complex and the vectors x and y are complex

SYNOPSIS
       SUBROUTINE ZLACRT( N, CX, INCX, CY, INCY, C, S )

	   INTEGER	  INCX, INCY, N

	   COMPLEX*16	  C, S

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

PURPOSE
       ZLACRT performs the operation ( c s )( x ) ==> ( x ) ( -s c )( y ) ( y ) where c and s are complex and the vectors x and y 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 CX.  INCX <> 0.

       CY      (input/output) COMPLEX*16 array, dimension (N)
	       On input, the vector y.	On output, CY is overwritten with -s*x + c*y.

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

       C       (input) COMPLEX*16
	       S       (input) COMPLEX*16 C and S define the matrix [  C   S  ].  [ -S	 C  ]

LAPACK version 3.0						   15 June 2000 							 ZLACRT(l)