作者查詢 / APM99
作者 APM99 在 PTT [ Math ] 看板的留言(推文), 共922則
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1F推:先令 d:X×X→R by d(x,y)=||x-y||11/23 17:23
2F→:然後證明(X,d)是一個 賦範空間11/23 17:24
3F→:書上所謂的 賦範空間也是賦距空間 應該是指11/23 17:25
4F→:給一個 賦範空間 那我們可以馬上得到一個 賦距空間11/23 17:25
1F推:不對 不能因為奇函數性質而抵銷11/20 16:17
4F推: ln(x^2) = 2ln(x) 而ln(x)的積分為 xln(x)-x11/19 19:31
7F推:u=ln(x) => du = 1/x 不等於 d[ln(x)] = du11/19 20:07
8F→:相信我吧 ln(x)的積分等於 xln(x)-x11/19 20:10
1F推:第一點 比p大的有理數 不是他關心的點 不重要11/18 18:44
5F推:你把你算式列出來吧11/18 12:34
1F推:1-恰一白-恰兩白 =11/17 20:47
12F推:什麼是挑不多大的毛病?11/17 20:52
14F推:嗯 答案跟我都錯了 少了沒有白11/17 21:07
1F→:因為無解阿 你想想看 根號會是正的11/17 20:03
2F→:正+正+1 = 0 矛盾11/17 20:03
3F→:不過你會帶數字回去是非常正確的 大多人都會忽略11/17 20:06
8F推:左邊恆正 右邊為她的兩個平方跟11/16 22:47
9F→:這在'複變'當中的確是不同的~11/16 22:48
10F→:複變這門科 她的符號有特別說明11/16 22:49
11F→:(你的書沒這樣規定的話就不談了)11/16 22:50
5F→:甲對 乙錯11/16 12:05