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作者 Vulpix 在 PTT 全部看板的留言(推文), 共57750則
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1F→:(1) 5組應該無順序。11/18 01:50
3F→:(2) 第1位朋友可能分得3,4,5,6,7份禮物。11/18 02:00
4F→: 回頭重看這題,其實有其他複數解|||02/23 02:18
3F→:這個矩陣就是P啦,是個對稱的投影矩陣11/16 09:41
1F推:好像傅立葉轉換有不錯的結果11/16 00:04
1F→:如果絕對收斂的話,左端點也收斂。11/15 20:55
3F→:而且還有很多很多解……11/15 13:22
4F→:抱歉,好像就這兩個獨立解了。11/16 00:22
1F推:在null space找一組基底----(1)11/14 02:29
2F→:在image找一組基底,並隨便抓一套其pre-image----(2)11/14 02:31
3F→:說明(1)U(2)其實是一組定義域的基底11/14 02:32
4F→:當然還要驗證span(1)與span(2)只能交於011/14 02:37
1F→:就是等號右邊那個意思 所以LHS的定義就是RHS11/13 14:51
2F→:都是沿著n的方向導數11/13 14:52
7F→:#1Cs1OA2A11/12 01:45