“广义蝴蝶定理”的本质结构及新的不变量关系

摘要

利用射影对应变换方法，给出二次曲线中割线线段度量关系的不变量关系，揭示“广义蝴蝶定理”的内在关系。%By using corresponding methods of projective transformation,the invariant relations of secant line metric relations of conic are proposed,the intrinsic relationship between the“generalized Butterfly Theorem”is revealed.