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作者 deathcustom 在 PTT [ Math ] 看板的留言(推文), 共104則
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3F推: 和差化積/積化和差都是和角公式的演變,但是從以前09/11 10:21
4F→: 老師們從來不會好好教......都是直接要求學生背下來09/11 10:24
1F推: 1. 定義脫離的意思(完全脫離?)09/06 17:27
2F→: 2. W=F dot S,所以作正功的部分無關乎時間黏力09/06 17:27
3F→: 3. 只關於S(完全脫離點-原始貼合狀態)的距離向量09/06 17:28
2F推: 如果是高階的時候你就不會覺得多此一舉了~"~07/25 10:28
3F→: 而且寫成矩陣型態主要是方便使用電腦運算07/25 10:28
5F推: 不先練習練習,遇到高階的就不會了啊(無誤?)07/25 16:29
4F推: lim b= 2 or lim b =-2不等價於 lim b= 2 or -206/23 01:08
6F推: lim b=2 or lim b=-2是兩種極限存在的態樣06/23 10:30
43F推: 除非在一個區間內,x to y是bijective(1-1 and onto06/19 01:16
1F推: 由於總量的關係,所問等價於x+2y+3z=4005/15 07:17
1F推: 拋物線碗口向下 y = -4(x^2-4x+4) +1296,x=2 y=129603/22 17:32
2F→: 這題基本上用不到微積分QQ03/22 17:32
1F推: 組六隊跟組七隊"並不是與現實反常",而是不在選項03/14 15:02
3F推: 不需要過程啊lim x->1 sinc(x) = 102/25 03:51