[ новости /+++ | форум | теги | ]

NAME
     dswap - Exchange vectors x and y.

SYNOPSIS
     SUBROUTINE DSWAP (N, X, INCY, Y, INCY )

     INTEGER INCX, INCY, N

     DOUBLE PRECISION    X( * ), Y( * )



     #include <sunperf.h>

     void dswap(int n, double *dx,  int  incx,  double  *dy,  int
               incy) ;

PURPOSE
     DSWAP - Exchange x and y where x and y are n-vectors.


PARAMETERS
     N         - INTEGER.
               On entry, N specifies the number  of  elements  in
               the  vector.   N must be at least one for the sub-
               routine to have any visible effect.  Unchanged  on
               exit.

     X         - DOUBLE PRECISION array of DIMENSION at least
               ( 1 + ( n - 1 )*abs( INCX  )  ).   On  entry,  the
               incremented array X must contain the vector x.  On
               exit, the y vector.

     INCX      - INTEGER.
               On entry, INCX specifies  the  increment  for  the
               elements  of  X. INCX must not be zero.  Unchanged
               on exit.

     Y         - DOUBLE PRECISION array of DIMENSION at least
               ( 1 + ( m - 1 )*abs( INCY  )  ).   On  entry,  the
               incremented array Y must contain the vector y.  On
               exit, the x vector.

     INCY      - INTEGER.
               On entry, INCY specifies  the  increment  for  the
               elements  of  Y. INCY must not be zero.  Unchanged
               on exit.

Партнёры:

Хостинг: