Support! ^-^

I answered your post with Chinese characters, Failure!

These posts disappeared.

大家用同一种语言（英文）交流起来比较方便。

就当练习英语，^-^

用英文交流起来方便，可以获得更多的关注和支持。

It works as Maplesoft's online support platform, I also like it.

The only regret is that the speed is a bit slow. I launch the forum from different places, same slow speed.

What's your version of your Maple? But I am sure that this worksheet can be showed normally in most Chinese system.

I guess you downloaded this worksheet from the website(www.cca-es.com/cn/maple/).

So if you encounter any problem, you can connect local support.

These can be easily completed with MapleSim, and you do not need to care about what Maple commands to use, just need to enter the corresponding equation and Initial conditions.