21/01/21 20:24:34.07 XywhSHYS.net
>>489
|z^2 - a^2 - b|^2
= ････
= |2ad|^2 + |e^(2iθ) - (a/a~)|^2 |d|^4
≦ |2ad|^2 + |2d^2|^2,
|2ad| ≦ |z^2 - a^2 - b| ≦ |2ad| + |d|^3 /|a|,
半径の幅 |d|^3 /|a| → 0
21/01/21 20:24:34.07 XywhSHYS.net
>>489
|z^2 - a^2 - b|^2
= ････
= |2ad|^2 + |e^(2iθ) - (a/a~)|^2 |d|^4
≦ |2ad|^2 + |2d^2|^2,
|2ad| ≦ |z^2 - a^2 - b| ≦ |2ad| + |d|^3 /|a|,
半径の幅 |d|^3 /|a| → 0