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。
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
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 other person is) YWNBTA = You Would Not be the Asshole (and the other person would) ESH = Everyone Sucks here NAH = No Assholes here INFO = Not Enough Info
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Recommendations for free online movie sites? : r Piracy - Reddit Yeah it’s really weird, I had the extension all set up, and today it kept not working and saying it wasn’t updated (I updated everything, uninstalled it, reinstalled it, even tried on a different browser and downloading the extension fresh and it said it was out of date) and going default just says it can’t verify and I tried later today and now apparently the server isn’t responding
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Fate Grand Order - Reddit After a 10 minute break, we'll head over to Area E There's still 20km to cover today, so prepare yourself ----- Scene: Hotel Lobby Maid Barghest: ーNo, that's quite fine I'll just leave the watering of the courtyard to you I must admit that I was at a bit of a loss when you told me that you "wanted to help with the hotel tasks", but
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