The equation of motion of a pendulum.

The linearized equation.

| parameter | description |
|---|---|
| init angle(deg) | Initial Angleidegreej |
| time | time window (sec) |
| SAKURAI, Masashi | E-mail : m.sakurai@cmt.phys.kyushu-u.ac.jp Web page : http://www.cmt.phys.kyushu-u.ac.jp/~M.Sakurai/ |