作者查詢 / wxtab019
作者 wxtab019 在 PTT [ Math ] 看板的留言(推文), 共281則
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5F→: 都遇過不只可以帶大抄 也可以帶電腦 什麼都可以的11/03 14:23
6F→: 你有能力的話帶一個學長來也可以11/03 14:24
1F→: 應該不是贏的機率 是期望值吧 贏的機率還是不變11/03 12:08
2F→: 本來的期望值是 (21/36)*(-1)+(15/36)*111/03 12:09
3F→: BONUS是 (21/36)*(-1)+(10/36)*1+11/03 12:10
4F→: 5/36*(1/3*1+1/3*1.5+1/3*2)=(-3.5/36)11/03 12:11
4F→: 看(-y)e^{-yT}+1+y*D/P 是正還是負11/03 11:22
1F→: 看答案是11%應該就是錯的了吧...6*6*6..04/20 01:28
2F→: 總共也就123 124 234 三種可能*3!=18 18/21604/20 01:30
4F→: x = 1/2 + 1/2cos(2x+π)03/30 20:25
4F→: log加相變相乘 係數進去變次方 然後就算幾不等式12/27 17:46
30F→: 之前ask板記得也討論過XD 那裡的用10萬討論12/21 20:07
31F→: 所以有的就認為 雖然期望值無限大12/21 20:07
32F→: 不過要拿到超過10萬 要連續15 16次才可以 機率太低12/21 20:08
35F→: 那時候有人是說 還要看總共能丟幾次的期望值12/21 20:10
40F→: 他是說丟的次數期望值=1+1*1/2+1*1/4+1*1/8+...=212/21 20:13
41F→: 所以期望值來說的話只能丟2次12/21 20:13
42F→: #1K91vzTU (ask) 之前討論的串12/21 20:13
46F→: 我也是覺得應該不能用次數期望值去看就是了12/21 20:24
47F→: 主要這個不成立的情況應該是成本不夠12/21 20:25
48F→: 記得之前看到跑出來的期望值是logn/log2 ?12/21 20:25
49F→: 所以表示遊戲次數越大 期望值的確會趨近無窮12/21 20:26
50F→: 只是因為越後面期望值成長的速度越來越慢12/21 20:27
51F→: 就是說 實際上不可能達到 無窮 這個概念12/21 20:28
1F→: 找規律 先找n=4.5.6.7的特解 後面都照mod4解11/30 10:37
5F→: 記得NBR比重好像在0.95~1左右吧 不過還要看實際10/16 14:02
3F→:看了5秒鐘先猜9 直式開平方法05/31 20:45
5F→:也不需要全開阿 不就97開根號=9.xxx05/31 20:53