[理工] [工數]- 一題積分 和 一點點控制
1.
cosx c1
y' = - ------- + --------
2 2
sin x sin x
1
y = ----- - c1*cotx + c2
sinx
^^^^^^^^^
這怎麼來的...
1
莫非 ------ 積分 是 cotx ? ...
2
sin x
2.
詹森 自動控制 p8-30 頁
相位邊限 = 17 度
開路轉移函數 適用哪個算出來的阿
我怎麼算不出來
我是這樣算的
40
---------- = 1
jw(jw+2)
4 2
w + w - 160 = 0
w = 3.48
PM = 180 + ㄥG(j3.48)
= 29.88...
我哪裡算錯了..
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