养老新时代
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养老新时代如何老有所依？
中国谁赚钱最多？有人说，一个是老人的钱，一个是孩子的钱。近年来，各类养老机构频频雷人。关闭热搜，几个老人上当受骗，毕生积蓄打到了水漂。很多人终于还清了房贷，却住进了养老院，最后被养老院扫地出门。养老方[详细]
2023-02-22 10:07 分类：问答Algorithm for calculating definite integrals with bounds at infinity
Suppose I have an integral that\'s bounded on one (or both) end by (-)infinity.AFAICT, I can\'t analytically solve this problem, it takes brute force (e.g. using a Left Riemann Sum).I\'m having troubl[详细]
2022-12-28 12:38 分类：问答
![Interactive visualization of a graph in python [closed]](https://www.devze.com/res/2023/04-10/09/92d32fe8c0d22fb96bd6f6e8b7d1f457.gif)
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