作者查詢 / jetzake
作者 jetzake 在 PTT [ Math ] 看板的留言(推文), 共525則
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6F推:那A一開始挑掉的那個為什麼必定要分給B??03/17 02:48
7F→:"C picks for A"這段有可能選到A一開始ban掉的嗎??03/17 02:50
1F推:先搞懂微積分對應幾何圖形的意義或許是個好方法03/07 21:53
2F→:如果不是數學本科系的 其實很多證明看過知道就好03/07 21:54
3F→:重點是證明結果的應用03/07 21:54
20F推:微積分這東西本來是為了解決物理領域的問題03/08 04:09
21F→:算加速度、變化趨勢(微分) 算面積、體積(積分) 這樣03/08 04:10
22F→:直到阿牛和小萊推出微分和積分的關係後 才有更多應用03/08 04:11
23F→:至於在機率統計或是經濟學上的應用 都是後話了03/08 04:12
24F→:所以這些證明齁... 其實在後續的實際應用不太算重點03/08 04:13
25F→:要啃到高微這類的 再去從頭到尾徹底貫通不遲03/08 04:14
26F推:看了看好像離題了...= =A03/08 04:26
27F→:我要說的是 與其弄懂證明敘述本身的邏輯關係..03/08 04:27
28F→:還不如先弄懂"為什麼需要證明這個"比較要緊03/08 04:27
29F→:各個定理定義一定有他的理由和用處 這才最重要03/08 04:28
30F→:如果失去目的本身 邏輯再怎麼鑽空子都得不到太多東西03/08 04:29
3F推:六種吧?? 1=>0=>-1=>0、1=>2、-1=>-2各兩種??03/06 03:10
4F推:用換底公式可以更自然一點 大致上都差不多就是了01/21 16:53
1F推:會講到(p,q)=1 通常是在排序的時候對同一數表示法01/08 01:34
2F→:..單一化避免爭議的時候吧??01/08 01:34
3F→:另外 "無窮因倍數關係"是什麼?? 有勞說明一下??01/08 01:36
4F→:有外文名詞嗎?? 中文丟辜狗也沒查到什麼...@_@a01/08 01:37
6F推:設 a_n=0 c_n=-n for all n 就是個明顯的反例12/12 16:40
7F→:如果可以設定c_n在某項後全大於0 推論就成立這樣12/12 16:41
8F→:最後 "有界"是"數列收斂"的定義12/12 16:42
9F→:"級數收斂"用的是"級數和為定值"12/12 16:43
10F→:...啊阿 修正一下 數列收斂也是用"無限逼近定值"12/12 16:45
11F→:"有界"大多是用在討論過程中的工具12/12 16:45
10F推:筆順啥的不用太在意啦.. 嚴格說來 國字也是沒有筆順11/30 14:30
11F→:筆順只是這種戒嚴權威教育法的副產品之一罷了11/30 14:31
13F→:所謂筆順只是"容易寫的好看的方法"而已11/30 15:05
14F→:你用點的用畫的用印表機印出來的國字也不算錯不是嗎11/30 15:06
15F→:這東西之於數學 就像公式一樣11/30 15:07
16F→:不遵守這些方法不等於錯11/30 15:07
1F→:証個相似形如何?11/25 07:55
2F→:或是 設AP長度是x(=CP) PB長度是y(=DP)11/25 07:57
3F→:然後 內公切線長=x-y 外公切線長=x+y 簡單吧11/25 07:57