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作者 Vulpix 在 PTT [ Math ] 看板的留言(推文), 共7171則
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3F→:"舉反例"跟"反證法證明"是一樣的意思喔。07/14 14:03
5F→:我其實想要強調"舉反例就是證明",然後是證反面為真07/14 14:21
6F→:這樣...07/14 14:21
5F→:formula跟formulae...07/09 23:54
1F→:你抄的公式是繞x軸旋轉的體積唷...07/09 21:42
11F→:一定啊,因為兩個小數部份相減不會是0.0000......07/08 20:51
13F→:不是的,循環節有「長度」,但循環節長度不是循環節07/08 22:42
14F→:就像我的體重不是「我」一樣07/08 22:43
16F→:不過其實1/13跟10/13的循環節一樣XD07/09 22:04
10F→:28不需要用l'Hospital,所以題目沒問題。07/08 19:17
13F→:其實,General Mathematics就是Calculus。07/05 10:59
1F推:A=2π[0 1;-1 0], B=π[3 13;-1 -3]06/14 18:25
2F→:多出來的維度就「直加」0方陣06/14 18:29
10F→:要討論的話,請考慮x+y,x-y與0的大小關係06/03 12:24
11F→:總共分四次就做完了06/03 12:24
1F→:最方便的還是a^3+b^3+c^3-3abc04/26 10:43
31F→:我是覺得啦..."P only if Q"跟"Q if P"一樣不容易04/20 09:32
32F→:看出他們等價啊...04/20 09:32
33F→:這裡中文英文的門檻應該是一樣高的04/20 09:33
34F→:雖然翻譯爛啦...可是這個翻譯是很有歷史的,是在要04/20 09:42
35F→:表達"if"的時候就一定會用「若」的年代...04/20 09:43