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作者 Vulpix 在 PTT [ Math ] 看板的留言(推文), 共7170則
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1F→:AC不是要多短有多短嗎?08/13 15:07
3F→:原來BC長度固定啊……08/13 19:54
5F推:3/4 正弦餘弦就可以算了08/15 14:07
4F→:你應該還需要那個"subgroup"非空……08/11 23:08
5F→:而通常我們都選擇驗證「e \in G」08/11 23:11
9F→:注意第1,4點,開頭都是「for all elements in G...」08/12 00:24
10F→:所以如果那個"subgroup"空掉了,這兩敘述都自然成立08/12 00:25
11F→:但是真的subgroup一定不是空的啊08/12 00:26
4F→:可以化成柯西方程08/11 20:15
5F→:話說,原來f(0)是多餘的東西08/12 03:28
4F→:向徑是 1?幅角是 180度-2*arctan(ab)? 畫圖吧...08/11 14:10
5F→:好不容易才看懂你的問題……08/11 14:11
5F→:不過也沒必要用羅必達,高中有教換底公式啊~08/09 01:27
4F推:真的要推這篇 還有,是屬於08/07 14:09
11F→:我說的是在這篇很上面的那個「包含於」08/08 17:01
14F→:所謂"a的centralizer"就是"使a進入其center的subgp"08/07 17:05
2F→:在不同的地方展開就有不同的半徑呢……08/05 01:34
8F→:話說,那個東西不叫「質因數」,而是「公因數」。08/04 02:28
28F→:請先想清楚你想要的「找到」是什麼意思。07/31 23:07
29F→:是尺規作圖嗎?還是可以拿個圓滾來滾去?07/31 23:09
31F→:另外,看來你的「有理數」是「有道理的數」07/31 23:10
32F→:但是,「有理數」其實就是一般所稱「分數」。07/31 23:11