作者查詢 / adifdtd
作者 adifdtd 在 PTT [ Math ] 看板的留言(推文), 共17則
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1F推: 如果用體積來說明 正負值該如何判定10/28 14:10
17F推: 失敗的教育10/28 14:14
21F推: 台灣數學系的學生很多沒有真正喜歡數學05/15 16:14
1F推: 感謝了!! bugmens也在推文連結中提到此一方法03/26 23:32
1F推: 為什麼最大值不會在|z|=0? 不過好像也不需要此條件03/26 23:35
2F→: 為什麼顯然x,y > 0 , z < 0 ?03/26 23:35
3F推: S'是對t偏微 應該吧? 因為z,r皆固定03/26 23:41
4F→: 我的最大值發生時 x,y並不相同03/26 23:41
5F推: max S(t;z) = S(π/4;z) 如何觀察?03/26 23:43
6F推: S'(π/4;z)=0 似乎不代表S(π/4;z)是最大(固定z)03/26 23:47
7F→: 感謝你喔!!03/26 23:47
3F→: 別人問我的 原來是台大資工考題 感謝告知03/26 23:28
4F→: 奇摩最佳解答 最大值為1.48189868 比我跑的還小03/26 23:29
1F→: 範圍應該屬於數論的diophantine equation03/22 08:34
2F→: 但內容我幾乎忘光了 囧03/22 08:34
4F→: 好像沒有搜尋到為什麼(x+y√2)^k的係數是唯一解03/22 10:39
5F→: 不過我相信再繼續找就可以解決 感恩03/22 10:41
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