作者查詢 / cuttlefish
作者 cuttlefish 在 PTT [ Math ] 看板的留言(推文), 共285則
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1F→: 還不會做 不過感覺上C_k應該是嚴格遞減到sqrt(2)12/24 04:27
2F推: Stereographic projection12/02 12:10
1F推: 看WIKI上寫得好像還要一些條件才行11/12 02:29
1F推: 你沒給\epsilon, Xii, hii各是什麼11/03 11:55
2F→: 稍算了一下 取B=(X'X)^{-1}, C=Xi11/03 11:56
3F→: 猜hii = Xi'(X'X)^{-1}Xi11/03 11:56
4F→: 提示是Sherman–Morrison formula11/03 11:59
5F→: 更正 B=X'X11/03 11:59
2F推: 就上面那個人回的那樣 例子是說a=5, b=310/14 11:25
3F→: 拿來做第一個長方形 但是實際上只有在alpha=0.3間10/14 11:26
4F→: 才能保證有解 所以他說無法在entire |x|<5有解10/14 11:26
1F推: 有點瑕疵 因為極限不一定是f(x_0)10/09 09:14
1F推: 初微? 用定義做 其實左右極限都不存在喔10/09 02:44
8F推: x沒範圍嗎? 答案對嗎?10/08 13:54
13F→: 我看錯了 原來你那個是問號10/08 17:12