public void subtract(Vector v)
	{
		x = x - v.x;
		y = y - v.y;
		z = z - v.z;
	}
public void subtract ( Vector v ) { x = x - v . x ; y = y - v . y ; z = z - v . z ; }
Subtracts the given {@link Vector} from this <code>Vector</code>.

@param v the vector to subtract