摘要: $$\binom{5}{555}$$ 阅读全文
posted @ 2018-05-08 23:28 Jack-Huang 阅读(99) 评论(0) 推荐(0)
摘要: ${\sigma}_{k}(n)=\sum_{d|n}^{}{d}^{k}$ 阅读全文
posted @ 2018-05-08 23:23 Jack-Huang 阅读(88) 评论(0) 推荐(0)
摘要: $$\binom{5}{555}$$ 阅读全文
posted @ 2018-05-08 23:20 Jack-Huang 阅读(89) 评论(0) 推荐(0)
摘要: \[ \lim_{n \to \infty} (1+\frac{1}{n})^{n} = e\] $$\lim_{x \to 0} \frac{\sin x}{x} = 1 $$ 阅读全文
posted @ 2018-05-08 23:07 Jack-Huang 阅读(174) 评论(0) 推荐(0)
摘要: 开发 阅读全文
posted @ 2018-05-08 17:31 Jack-Huang 阅读(106) 评论(0) 推荐(0)