【摘要】 建立等重方阵的概念,并运用它阐述幻方、2次幻方、3次幻方及中心对称互补幻方的充要条件,根据这些结论构作出一些8阶、9阶2次中心对称互补幻方.更多还原

【Abstract】 In this paper,the concept of equal repetition matrix is introduced and the necessary and sufficient conditions of magic squares,quadratic magic squares,cubic magic squares and symmetrical complementary magic squares about the center are described by using such concept.Using these results some quadratic magic squares of orders 8 and 9 were constructed and they are all symmetrical complementary magic squares about the center.更多还原