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4F→: 你的I4跟I3的差異就是由OP提供的電流,至於OP輸出多02/20 11:43
5F→: 電壓沒關係,反正V34就是被定死,然後因為OP輸出電壓02/20 11:44
6F→: 是有限值,所以OP的輸入端電壓差 = Vout/A = 002/20 11:44
23F推: 最極限的當然在這邊看的出來明顯差距XD02/17 11:21
5F→: 因為他們不會影響啊02/16 23:04
17F推: 本文顏色不對請重上色,綠皮卡關心您211.23.191.211 02/16 15:00
2F→: 恩...............誤繕,你說的對02/05 16:34
1F推: 第一種哪裡不嚴謹?嚴格遞增、極限證明上界02/02 17:48
3F推: 角C角度越大,角A角度越小,證明如下02/02 22:54
4F→: 考慮三角形ABC外接圓,角A、角B、角C分別為圓周角02/02 22:55
5F→: 根據定理,圓周角角度=所對弧角度/202/02 22:55
6F推: 並根據正弦sinA/sinB = BC/AC =定值02/02 23:08
7F→: 因此角A與角B的sin值只能同增或同減02/02 23:08
8F→: 角C增加=>角A與角B對應弧之和減少, vice versa02/02 23:09
9F推: 由上述可以推得sinA與sinB極大值出現在C 90度02/02 23:12
13F推: C改變外接圓改變,但是C的對應弧AB變大,弧BC+弧AC02/03 06:57
14F→: 就會變小,又由於sinA/sinB是定值,因此只能同增同02/03 06:58
15F→: 減,考慮弧AC+弧BC的和在角C(從90度)漸增的狀況下是02/03 06:59
16F推: 嚴格遞減,sin函數(sinA,sinB)在(0,90)是單調增函數02/03 07:02
21F推: 我前兩天還看到有討論legal document的copyright的01/31 00:36
26F推: 專利說明書的公開本本身的確應該例外不受著作權保護01/31 08:15
27F→: 但是這裡討論的是rule 12 motion的文件01/31 08:15
28F→: David Vaver, "Copyright in Legal Documents",01/31 08:16
29F→: Osgoode Hall Law Journal, Vol. 31(4), 199301/31 08:17
2F推: BTW, 說到本能寺會不會有另一種可能,因為濃姬跟光秀01/28 21:38
3F→: 是表兄妹...說不定是"情殺說"XDDD01/28 21:39
3F→: 不是例如Vg = k*Vd這種就是Vg受控於Vd01/22 19:45
7F→: 所以我才說那種狀況通常發生在(特殊的架構中)01/22 22:56
8F→: 只要Vg不是受控於Vd,你就沒辦法得到-gmvg=-kgmvd01/22 22:57
9F→: 那你就不能直接視為一個等效電阻01/22 22:58
1F推: 你的問題怪怪的?討論一個電壓源的輸出阻抗時01/20 22:11
2F→: 請考慮Norton-Thevenin的model01/20 22:11