平方级的通式不对。第y次迭代时有一项(M+y）*（M+y-1)=M^2+（2y-1)M+y^2-y

来源: wxcfan123 于 2023-03-16 10:07:21 [旧帖] [给我悄悄话] 本文已被阅读：次

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