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作者 Vulpix 在 PTT [ Math ] 看板的留言(推文), 共7235則
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13F推: 這可能不trivial,但應該相當自然。10/21 23:44
1F推: ±1/√2 by brute force10/21 01:20
60F推: 機率空間={甲,乙},P({甲})=1。這樣呢?{乙}仍是事10/20 12:42
61F→: 件,但機率為0。10/20 12:42
1F推: df是Δf線性化的產物,在這個曲面上Δf是0,所以d10/20 05:16
2F→: f跟著是0。10/20 05:16
9F推: 梯度垂直於等值面,這算常見定理了啦。10/20 07:30
12F推: 不過沒有要強迫分解,應該還好吧,用腦力激盪也是老10/18 14:05
13F→: 師訓練學生的方式。10/18 14:05
2F推: 1-C(600,5)/C(1000,5)比1-0.6^5大一點。10/16 22:31
3F→: 1-C(400,5)/C(1000,5)比1-0.4^5大一點。10/16 22:32
1F推: 你主持人開到車怎麼辦……10/15 18:04
5F推: 主持人不知道車在C門,他要怎麼知道該開B門?10/15 18:31
6F→: *車不在B門10/15 18:32
7F→: 總之,你算的是條件機率。已知條件是主持人隨意看10/15 18:34
8F→: 了B門,門後是羊。10/15 18:34
9F→: *開了10/15 18:35
23F推: 直接BV呢?不要局部看。10/14 16:08
2F推: 箱子不是只有小箱子。10/12 19:02