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[課業] 拉普拉斯轉換
May 22nd 2014, 18:14, by july15cancer

作者july15cancer (小U)

看板Examination

標題[課業] 拉普拉斯轉換

時間Thu May 22 18:14:52 2014

最近在做電路學考古題時 有一題拉普拉斯是這樣的 (15S+30)/(4S+6) 於是我先把他除一下變成 (3.75S+7.5)/(S+1.5) 但是這時侯 我把它拆開來變成 3.75S/(S+1.5)+7.5/(S+1.5) 左邊的那一式 我先乘上1/S 再做反轉時 做3.75*exp(-1.5)的積分 請問這樣做有錯嗎? 還是真的拆開 一定要變成 {3.75(S+1.5)+1.875}/(S+1.5) 再做反轉 麻煩會的回答了 謝謝 -- ※ 發信站: 批踢踢實業坊(ptt.cc), 來自: 175.180.213.104 ※ 文章網址: http://www.ptt.cc/bbs/Examination/M.1400753695.A.565.html

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