在数学研究中,我们暂且将对称问题分为抽象函数的对称问题和解析几何的对称问题,现在我们对平面解析几何的对称性问题进行研究.一、关于定点对称问题(中心对称问题)实质:该定点是两对称点连线的中点.方法:利用中点坐标公式. In mathematics research, we temporarily divide symmetry problems into symmetry problems of abstract functions and symmetry problems of analytic geometry. Now we study the symmetry problem of plane analytical geometry. First, about the fixed-point symmetry problem (central symmetry problem) Essence: The fixed point is the midpoint of the line connecting two symmetrical points. Method: Use the midpoint coordinate formula.