[理工] Laurent Series 99成大機械
基本求Laurent Series的方法已大致了解
但由於這題講義上有標註 <思考>速解?
想知道到底有什麼樣的方法可以更快速解答
目前想了半天只得到以下結論
0 < 絕對值z-1 < 1 --- 可用長除法較快
1 < 絕對值z-1 < 根號5 --- 答案的係數似乎是 上面的係數+1/8 (但我不知道原因)
絕對值z-1 > 根號5 --- 這部分依然沒有頭緒
還請高手解答了,謝謝
題目(第一小題):
http://imgur.com/JUoh46s
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