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作者 wolf0000 在 PTT [ Grad-ProbAsk ] 看板的留言(推文), 共50則
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1F推:感謝!請問f(u,v,w)=(1/2) 是怎麼推得的呢?09/20 23:15
5F推:我把它看成(u,v,w)=(x+y,y+z,z+x)才求的出ja det=1/2耶..09/21 00:10
6F→:這樣做對嗎?因為我想說d(X,Y)≡│X+Y│亦=√(X^2+Y^2)09/21 00:12
7F→:如果用(u,v,w) =( x-y , y-z , z-x )變數變換做不出來= =09/21 00:13
1F推: X1 and X2 be observations of a random sample09/14 11:00
2F→:X1和X2 的樣本都是隨機取樣09/14 11:00
3F→:X1取到什麼,不影響X2,反之亦是,So在觀念上是獨立的09/14 11:01
1F推:轉的眼睛都花了,通訊應該不會考這個吧= =09/11 02:55
3F→:底*高 = (ε/π) * (1/2ε) = 1/2π09/10 23:55
18F→:sinc = sin(πt)/πt 沒有π也可以轉成sinc嗎?不太懂@@09/11 01:40
2F→:感謝提醒!09/11 01:28
5F推:推高X09/09 18:01
6F→:要換成極座標積,爬文吧= =09/09 15:28
8F→:阿 忘記它是不定積分= =09/09 15:51
1F推:△f1=kf*Am = kp/2pi = 0.1/2pi..好怪,這樣乘法倍數有pi09/09 01:23
2F→:不太懂kp跟kf的轉換,△f1求出來再解聯立就可以做了09/09 01:24
2F→:自己乘開來一次就會懂了08/30 22:04