private Vector3 [] aV = new Vector3 [ cellMax ]
    private Vector3 vectFirst;
    private Vector3 positionFirst;

    for ( int cell = 0 ; cell < cellMax ; cell++ ) {
   aV [ cell ] = new Vector3 ( 0, 0, 0 );
  }

    while ( cellFirst < cellMax ) {

   positionFirst = new Vector3 ( x++, y++, 0 );
   vectFirst = ( Vector3.zero - vectSecond );
   vectFirst = new Vector3 ( ( force * vectFirst.x ), ( force * vectFirst.y ), 0 );
   aV [ cellFirst ] += vectFirst * force;

   cellFirst++;
  }