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Yahoo!奇摩知識+ - 分類問答 - 科學常識 - 已解決

拉氏轉換能教一下怎麼算嗎?

Nov 4th 2014, 16:10

給予下列控制系統所描述輸入-輸出方程式，其中u(t)為單位步階函數，試求各輸出y(t):

a. y"+2√ 3y'+4y=u(t), y(0)= 0 , y'(0)=1

b. y'(t) = t + ∫0>t y(t-τ)cosτdτ , y(0) =0

c. y"+4y = u(t)-u(t-1), y(0)=y'(0)=0

d. y(t)=1- ∫0>t y(τ)eˆt-τ dτ

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