public void Setup()
            {
                m_CircleOne = new Circle(1.0,
                                         -2.0,
                                         3.0);
                m_CircleZero = new Circle(3.0,
                                          -2.0,
                                          4.0);
                m_CirclePair = new CirclePair(m_CircleZero,
                                              m_CircleOne);

                m_Calculator = new CirclesIntersectionPointsCalculator(m_CirclePair);
            }
            public void Setup()
            {
                m_Two = new Circle(1.0,
                                   20.0,
                                   3.0);
                m_One = new Circle(10.0,
                                   20.0,
                                   1.0);
                m_CirclePair = new CirclePair(m_One,
                                              m_Two);

                m_Calculator = new CirclesIntersectionPointsCalculator(m_CirclePair);
            }