这是官网提供的解决办法：
大意翻译如下
matalb没有自带的反安装程式，所以你只要删除相关文件就可以
确定程序关闭，licence manager没开
用'rm -rf' 删除matlab的目录
rm -rf matlab
删除 /var/tmp 目录下的lm文件夹或者文件类型
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Solution:
There is not uninstaller for MATLAB on UNIX or Linux. To remove MATLAB you will simply need to remove the files. Here's what you should do to completely uninstall MATLAB on a UNIX or Linux machine:
1. If you are running a license manager for MATLAB, shut down the license manager using the 'lmdown' script located in MATLAB's etc folder. If this folder does not exist, you are not running the FlexNet license manager.
2. Remove the entire root MATLAB directory tree using the 'rm -rf' command.
3. Remove the license manager files in the /var/tmp directory. These files should begin with 'lm'.
This should remove MATLAB and the completely from your UNIX or Linux machine
