[理工] [工數] 級數的收斂半徑
1
f(z) = ────
1 - z
by Taylor Series
∞ n n
= Σ (-1) z
n=0
收斂半徑 r = │z - a│
以 a = 0 展開
z = 1 是奇點
為什麼此級數在收斂半徑內還是發散呢?
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推
08/31 14:50, , 1F
08/31 14:50, 1F
→
08/31 14:51, , 2F
08/31 14:51, 2F
推
08/31 14:52, , 3F
08/31 14:52, 3F
→
08/31 14:54, , 4F
08/31 14:54, 4F
推
08/31 15:49, , 5F
08/31 15:49, 5F
推
08/31 15:58, , 6F
08/31 15:58, 6F
推
08/31 15:59, , 7F
08/31 15:59, 7F