zlacrt(3F)

NAME
     ZLACRT - applie a plane rotation, where the cos and sin (C and S) are
     complex and the vectors CX and CY 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 applies a plane rotation, where the cos and sin (C and S) are
     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 -S*X +
             C*Y.

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

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