- 人们专门弄了一个自然对数函数的底数 e，是为什么？ - 知乎
e 的存在，使得 e^{x} 是求导运算的不动点。-----有了数字 e, 并定义了它的指数，对数是指数的反函数。以 e 为底数，我们可以定义对数函数。 \ln (x) PS: 在定义 ln(x) 之前，已经说明了存在某个数字 e, 使得 e ^ x 的导数为自身。
- E-Girls - Reddit
E-girl nerdy theme Posts needs to fit the theme of the sub girls and cute nerdyness :) There needs to be something relating to pop culture such as anime, gaming, cartoons in the post Egirl aesthetics such as collars, chokers, alt hair color, cat ears, cosplay, clothing, lighting RGB stuff works too
- Reddit - Dive into anything
Reddit is a network of communities where people can dive into their interests, hobbies and passions There's a community for whatever you're interested in on Reddit
- 知乎 - 有问题，就会有答案
知乎，中文互联网高质量的问答社区和创作者聚集的原创内容平台，于 2011 年 1 月正式上线，以「让人们更好的分享知识、经验和见解，找到自己的解答」为品牌使命。知乎凭借认真、专业、友善的社区氛围、独特的产品机制以及结构化和易获得的优质内容，聚集了中文互联网科技、商业、影视
- r Memes the original since 2008 - Reddit
Memes! A way of describing cultural information being shared An element of a culture or system of behavior that may be considered to be passed from one individual to another by nongenetic means, especially imitation
- ¥、$、€、£等符号是怎么来的？ - 知乎
来自字母E，Euro的首字母 4 ￡ 来自字母L的草体，是拉丁语Libra pondo(磅 镑)的首字母 英语pound、荷兰语pond、德语Pfund等词继承自pondo，法语livre、意大利语lira等词继承自libra。(是的，其实里拉和镑是同一个单位。
- reddit
r reddit: The most official Reddit community of all official Reddit communities Your go-to place for Reddit updates, announcements, and news…
- Former members of 2018 Canadian world junior hockey team elect jury . . .
The next day, after E M ’s mother reported the alleged incident to the police, that player initiated a conversation with E M , which later moved to text message According to still images reviewed by police, E M told the player, “I was ok going home with you, it was everyone else afterwards that I wasn’t expecting ”
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