|x|<xc* xc:The convergence radius
| f(x) | xc |
|---|---|
| sin | xc=infinity |
| cos | xc=infinity |
| exp | xc=infinity |
| log | xc=1 |
| sinh | xc=infinity |
| cosh | xc=infinity |
| SAKURAI, Masashi | E-mail : m.sakurai@cmt.phys.kyushu-u.ac.jp Web page : http://www.cmt.phys.kyushu-u.ac.jp/~M.Sakurai/ |