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作者 sssh 在 PTT [ Math ] 看板的留言(推文), 共58則
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1F推: 拓樸是一種抽象概念,我把外在的東西都拿掉12/23 16:42
2F→: 討論其中的不變性12/23 16:42
3F→: 所以我覺得要拿拓樸跟碎形比較有點奇怪12/23 16:43
16F推: 就紮實的內容來說,大一線代的確比初微困難10/25 17:59
1F→: 現在的夜間部都不太會有純粹或應用數學開課10/24 19:31
2F→: 絕大多數都是數學教育10/24 19:31
1F推: 顯然是吧06/01 14:44
8F推: 因為I是單位矩陣,AI=A且BI=B06/03 13:37
10F推: 我今天想了一下,4這個選項應該是沒有,答案沒錯06/03 17:54
11F→: 而且解答說的單位矩陣必須是同階方陣指的應該是V大06/03 17:55
12F→: 舉的例子 m必須等於n的狀況答案才會成立06/03 17:55
13F→: V大舉的例子 m應該不會強制等於n06/03 17:57
15F推: SOGA~~~~06/03 21:51
1F推: 滿足fx(a,b)=0 fy(a,b)=0 (a,b)就是critical point05/31 17:19
2F→: 後面就是要用二次微分的行列式檢驗05/31 17:20
1F推: 我覺得討論共面與否 應該要在不平行的條件下討論05/31 16:42
1F推: 因為它是zero transformation05/31 15:55
3F→: ∀α∈V , T(α)=0 ,所以Rank(T) =005/31 15:58
4F→: 只是這裡的0是W裡面的005/31 15:59
5F推: I是identity transformation 所以null(l) ={ 0 }05/31 16:05
2F推: 反函數微分就微完之後再倒數--不是這樣吧05/30 13:10