作者查詢 / IanHsia
作者 IanHsia 在 PTT [ Math ] 看板的留言(推文), 共95則
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2F→:沒唷 你這個二項式有到x的20次方..04/16 16:43
4F→:前項4次後項6次就有了04/16 16:49
5F→: 6 4 打反了= =y04/16 16:50
2F推:設點斜式 包含P點和欲求斜率m 然後對y=f(x)做一微分04/16 15:41
4F→:接著y'表示此三次式圖形的斜率 求y'=m且點斜式與此04/16 15:42
5F→:函數只有一解的 就是(1)所求 有兩解就是(2)所求04/16 15:43
2F推:第一題等號左邊:袋子裡a紅球b白球 任選k顆的情形04/15 15:12
3F→:等號右邊則是:列出所有取法的可能04/15 15:14
4F→:不知道用敘述的給不給分04/15 15:14
5F→:以前高中時我就這樣寫 老師有給分= =04/15 15:14
2F推:(4*800^3)/(14+25^4-800^4)^2-(4*25^3)/14^204/15 11:15
3F→:就是分式的積分 不就出來了嗎0.004/15 11:16
6F→:不要理我的式子 我弄錯了= =04/15 11:47
1F推:推那張圖XD04/15 02:33
6F推:失去鞋子 失去29 失去50 共100摳04/15 02:08
7F→:鞋子部份純看成本or機會成本就看人了..04/15 02:10
2F推:正三角形不是多心共點嘛...04/14 23:13
6F→:不是方陣會有det()值?04/14 23:19
9F→:我是指等號右邊.. 所以A.B一定是方陣阿04/14 23:24
17F推:三樓的推文意思是說det((AB^T))=det(AB)證明一次04/14 23:32
18F→:det(AB)=det(A)det(B)也證明一次04/14 23:33
20F→:就可以証出原式04/14 23:33
2F→:沒錯 一堆人發文都已經是大家討論出來的東西04/13 22:36
1F推:常聽到的是trivial solution 是指唯一解04/13 22:33
2F→:所以trivial representation 應該也是一樣的意思04/13 22:33
3F→:阿 我記錯了 當我沒說04/13 22:35
4F→:不過這兩個術語是一樣的意思就是 至於是啥意思...04/13 22:35
9F推:就是"零解"04/13 22:39
19F推:不過通常都會利用這個特性來判斷是否線性04/13 22:59
20F→:很基本的線性觀念..04/13 22:59