作者查詢 / DLHZ
作者 DLHZ 在 PTT [ Math ] 看板的留言(推文), 共361則
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2F→: det(A)det(A^-1)=det(AA^-1)=det(I)=1 and det(A) d01/18 15:12
3F→: et(A^-1) are integer, there are two situation on01/18 15:12
4F→: ly: 1=1*1or 1=-1*-1, so det(A)=1or-101/18 15:12
1F→: 不說其他地方 數學版不就是為了幫忙解答 雖然我不知01/12 18:56
2F→: 道哪篇但是幫忙解答又沒好處 我不認為有什麼好抄的01/12 18:56
3F→: 應該說我不認為有人會帶著抄襲的意圖來回覆01/12 18:59
21F→: 看老師教不教啊 考出來大多數人也不寫乾脆不考01/12 16:05
18F→: 樓上??01/12 12:30
1F→: 取xy平面1,0,0與1,0,0內積不為0 假設有v有兩正交補01/10 01:44
2F→: 餘w u, w任意向量皆與屬於v的向量垂直 可知對任意向01/10 01:44
3F→: 量屬於w也屬於v 反之亦然 所以w,v互相包含 也就是w=01/10 01:44
4F→: v 由此可知正交補餘唯一01/10 01:44
6F→: 感謝 是u的0,1,0跟v的0,1,0沒錯01/10 12:36
2F→: householder?01/08 15:59
3F→: SVD是用於任意大小的實矩陣01/08 02:08
18F→: 不太懂為什麼那影片一直有人轉12/08 17:17
3F→: 不太懂你的做法耶 我目前推出 eigenvalue=0 or 1 所11/29 21:35
4F→: 以 eigenvalue of A+I=1 or 2 so it's invertible11/29 21:35
5F→: 跟可以對角化成對角線為0 or 1這件事11/29 21:35
11F→: 大概了解了 感謝11/30 01:05