symplectic scheme的用法和样例：
例句
- Three-step symplectic quantum propagation of wavepacket has been applied to study the photodissociation of methyl iodide.
三步量子辛算法进行波包演化被用于研究碘甲烷的光解。 - The error accumulation of dynamics can be eliminated by using canonical equation and symplectic integral method so that the computational accuracy can be ensured effectively.
正则方程与辛算法密切结合，消除了动力学计算的误差累积，保证了计算精度。
