作者查詢 / Eliphalet
作者 Eliphalet 在 PTT [ trans_math ] 看板的留言(推文), 共183則
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11F→: 樓上 k 大,harmonic => smooth 的證明不會出現在03/27 10:10
12F→: 微積分吧?正常來說,只學過微積分的人連 mollifier03/27 10:11
13F→: 是什麼都不知道了03/27 10:11
14F→: 給原 PO,既然都有二次的微分出現了那個 phi 當成03/27 10:15
15F→: C^2 似乎也無妨(?) 有些工程類的書在推導這個式子03/27 10:17
16F→: 時,好像也都沒管這麼多的 XD03/27 10:17
17F→: 不過轉學考的微積分真的會出這種題目嗎?雖說不是03/27 10:18
18F→: 不行,但總覺得怪怪的...原PO可以說一下出處嗎?03/27 10:18
2F→: 所以這就是為什麼會有 1/2 跑出來的原因,我上面是07/11 20:20
3F→: 當 x > 0 處理,寫的話最好加個絕對值07/11 20:20
1F→: 你忘了有平方了04/27 00:12
2F→: 分母的係數配成那樣子不就是要把正餘弦疊合嗎 XD12/20 11:25
1F→: 數學版 z-3-1512/10 15:08
1F→:題目是不是有問題啊? f 是二次函數耶04/11 18:59
1F→:題目是不是有問題啊? f 是二次函數耶04/11 18:59
1F→:又是高考題目...04/11 18:18
2F→:想一想 ln(x) 和 x^p 的關係04/04 17:40
1F→:你題目搞錯了,有個 3/2 次方在分母03/12 21:13