CXML

ZLARTV (3lapack)


SYNOPSIS

  SUBROUTINE ZLARTV( N, X, INCX, Y, INCY, C, S, INCC )

      INTEGER        INCC, INCX, INCY, N

      DOUBLE         PRECISION C( * )

      COMPLEX*16     S( * ), X( * ), Y( * )

PURPOSE

  ZLARTV applies a vector of complex plane rotations with real cosines to
  elements of the complex vectors x and y. For i = 1,2,...,n

     ( x(i) ) := (        c(i)   s(i) ) ( x(i) )
     ( y(i) )    ( -conjg(s(i))  c(i) ) ( y(i) )

ARGUMENTS

  N       (input) INTEGER
          The number of plane rotations to be applied.

  X       (input/output) COMPLEX*16 array, dimension (1+(N-1)*INCX)
          The vector x.

  INCX    (input) INTEGER
          The increment between elements of X. INCX > 0.

  Y       (input/output) COMPLEX*16 array, dimension (1+(N-1)*INCY)
          The vector y.

  INCY    (input) INTEGER
          The increment between elements of Y. INCY > 0.

  C       (input) DOUBLE PRECISION array, dimension (1+(N-1)*INCC)
          The cosines of the plane rotations.

  S       (input) COMPLEX*16 array, dimension (1+(N-1)*INCC)
          The sines of the plane rotations.

  INCC    (input) INTEGER
          The increment between elements of C and S. INCC > 0.

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