public MyPoint Cong(MyPoint point1, MyPoint point2) { return(new MyPoint(point1.x + point2.x, point1.y + point2.y)); }
public MyPoint Tru(MyPoint point1, MyPoint point2) { return(new MyPoint(point1.x - point2.x, point1.y - point2.y)); }
public MyPoint(MyPoint mypoint) { this.x = mypoint.x; this.y = mypoint.y; }