Numerical experiments to "On averaged exponential integrators for semilinear ...

This code was used for the numerical experiments in the preprint (CRC Preprint 2021/12; URL: https://www.waves.kit.edu/downloads/CRC1173_Preprint_2021-12.pdf) and in the paper...本代码用于预印本（CRC Preprint 2021/12；URL：https://www.waves.kit.edu/downloads/CRC1173_Preprint_2021-12.pdf）及论文中的数值实验