[理工] 複變疑問
有兩題復變的問題
第一題小的還算有認真看過一回複變稍稍答得出來但不知對不對
又苦無答案可對照 煩請指正一番
1/4
(a) find all root of (-1) in the complex plane.
1/4 4 (2kπ+π)i
ans: 令 z = (-1) , z = -1 = e
(2kπ+π)i / 4
==> z = e (k=0.1.2.3......)
第二題就真的連擠都擠不出來.....也沒有一題類似的可以參考看看
(b) find all values of ln 1 in the complex plane .
ans: 令 z = ln 1 (同取 e ????)
z r (cosθ + i sinθ )
e = 1 , e = 1
好像開始在亂搞了......煩請大葛葛們提點提點!!!
預祝大葛葛們考榜首!!!
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