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作者 lovealgebra 在 PTT 全部看板的留言(推文), 共31066則
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20F推: 傅立葉轉換就是時域轉頻域,基底的概念應該是傅立葉01/21 15:07
21F→: 級數吧01/21 15:07
22F→: 還有,其實耳朵就是傅立葉轉換啊,還是一個帶通濾波01/21 15:08
23F→: 器01/21 15:08
5F推: 用Elementary Mateix Product01/21 16:16
2F推: 15,先考慮unit step function01/10 16:32
8F→: Undetermined coefficients12/07 15:38
8F→: Variation of parameter會比較快12/07 15:40
1F推: 散度定理開下去11/19 18:07
2F→: Div{(curl W)}=011/19 18:08
3F→: 拆成homogenous and Nonhomogenous part11/19 18:12
4F→: 特解部份可以用undetermined coefficients11/19 18:13
9F推: 第二個方法是積分因子法吧11/14 14:24
4F推: 換成解一個ODE11/19 19:07
105F推: 我們就是一個很爛的賽區10/11 14:43