It is natural to look forward to those discrete systems which preserve as much as possible the intrinsic properties of the continuous system. (Feng Kang 1985)

## 参考文献

【1】Symplectic integrator - Wikipedia感觉好像有地方有错

【2】Ernst Hairer, Syvert P. Nørsett, and Gerhard Wanner, Solving Ordinary Differential Equations I: Nonstiff Problems, 2nd ed. (Springer, Berlin, 2009).

【3】B.И.阿诺尔德, 阿诺尔德, 齐民友. 经典力学的数学方法[M]. 高等教育出版社, 2006.

【4】Haruo Yoshida, “Construction of higher order symplectic integrators,” Physics Letters A 150, no. 5 (November 12, 1990): 262-268.

【5】Forest, E.; Ruth, Ronald D. (1990). “Fourth-order symplectic integration”. Physica D. 43: 105.