這裡的綫性與非綫性如何區分？能否在數學之内和之外各舉一較成熟和具体的例子？哪怕是很小的例子。

来源: 中间小谢于 2019-08-18 12:02:04 [旧帖] [给我悄悄话] 本文已被阅读：次

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