java 表达式计算 很好用的开源功能包-java expression calculation

tool for explain expre-Jeval,a tool for explain express

通过这些Java第三方数学类库的示例，包括Jep,ExpressionJ,JEval数学库，可初步掌握其使用方法。-By way of example of these third-party Java class libraries mathematics, including Jep, ExpressionJ, JEval math library, you can use to get started.