https://stackoverflow.com/questions/3422673/evaluating-a-math-expression-given-in-string-form
1. googlecode.aviator（未验证）
https://blog.csdn.net/lxzo123/article/details/6082338
2.fast-el（未验证）
https://code.google.com/archive/p/fast-el/
https://blog.csdn.net/kisscatforever/article/details/80422976
看网上的讨论说是不支持三元运算，
3.JEP（未验证）
https://blog.csdn.net/CHS007chs/article/details/51728817
https://www.cnblogs.com/JiaJianWorld/p/7732459.html
4. EvalEx
github: https://github.com/uklimaschewski/EvalEx
https://udojava.com
5.ScriptEngine(js eval)
https://blog.csdn.net/w1014074794/article/details/45968559
https://blog.csdn.net/msyqmsyq/article/details/52954833
http://www.w3school.com.cn/jsref/jsref_obj_math.asp
6.
https://blog.csdn.net/earbao/article/details/39830563