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 …
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.
¥、$、€、£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 …
/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 …
r/Italia: l'Italia su reddit
Salve ragazzuoli e ragazzuole, sono un ragazzo di 25 anni, attualmente studio all'università e a breve mi laureo, avendo in questo periodo leggermente più tempo ho deciso di iscrivermi in …
Am I the Asshole? - Reddit
In your top level comment be sure to include one abbreviation for your judgment, i.e. YTA = You're the Asshole. YWBTA = You Would Be the Asshole. NTA = Not the Asshole (and the …
reddit
r/reddit: The most official Reddit community of all official Reddit communities. Your go-to place for Reddit updates, announcements, and news…
One Piece - Reddit
Welcome to r/OnePiece, the community for Eiichiro Oda's manga and anime series One Piece. From the East Blue to the New World, anything related to the world of One Piece belongs …
r/BingHomepageQuiz - Reddit
r/BingHomepageQuiz: Microsoft Bing Homepage daily quiz questions and their answers
What is irm https://massgrave.dev/get | iex : r/PowerShell - Reddit
PowerShell is a cross-platform (Windows, Linux, and macOS) automation tool and configuration framework optimized for dealing with structured data (e.g. JSON, CSV, XML, etc.), REST …