作者查詢 / OppOops
作者 OppOops 在 PTT [ Math ] 看板的留言(推文), 共227則
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4F→: 積分零到無窮sin x/x = pi/212/05 14:47
5F→: 所以 http://tinyurl.com/j6mtkhm12/05 14:48
5F→: 有用到"P(i), i < k + 1"的條件12/05 13:41
6F→: 不過如果這邊把歸納法順序倒過來寫, 跟反證法就一樣12/05 13:43
7F→: 反證法用到p,q∈N, √2 = p/q, 這樣的p,q不存在12/05 13:45
8F→: 看的就是整個正整數集合, 所以用歸納法就是遍歷N給12/05 13:47
9F→: 你看這樣的描述方法.12/05 13:47
9F→: 樓上你可以看一樓的答案,再想想這樣討論的問題在哪12/04 00:49
2F→: 把y = 2^x, y = 2^(-x)分別畫出來, 或者12/02 16:19
3F→: 畫直線算交點12/02 16:20
6F推: 描點作圖, 直線只是個參考, 至少 2^x, x<0會漸進y軸12/02 19:03
7F→: 描完以上兩圖的點, 再把高度相加、相減即為所求12/02 19:05
10F→: 這是條件機率;與其說發牌, 不如說去除一張牌12/02 13:59
11F→: 條件機率為P( 自己是壞牌的機率 | 98張是好牌)12/02 14:00
12F→: 因為剩兩張牌不知道在哪, 1好1壞, 所以自然是1/212/02 14:01
2F推: 推11/28 22:24
1F→: http://tinyurl.com/zezagl611/26 11:07
7F→: https://goo.gl/Honj0e11/25 10:12
9F推: 樓上那叫Euclidean norm, |a+bi| = √(a^2 + b^2)11/25 22:09
10F→: norm下保證是實數, 因此可以比較距離(大小)11/25 22:10
5F推: 感謝分享11/22 00:37
6F→: 44可當「早上買一顆蘋果,再下午一顆買橘子」的成本11/20 13:26