# expression4j-sample **Repository Path**: pangzhuzhu/expression4j-sample ## Basic Information - **Project Name**: expression4j-sample - **Description**: No description available - **Primary Language**: Unknown - **License**: Not specified - **Default Branch**: master - **Homepage**: None - **GVP Project**: No ## Statistics - **Stars**: 1 - **Forks**: 1 - **Created**: 2015-10-29 - **Last Updated**: 2021-06-20 ## Categories & Tags **Categories**: Uncategorized **Tags**: None ## README #expression4j-sample expression4j 是一个公式计算器 **主要功能如下:** 1. basic opératon (+,-,*,/,^) 2. real value (3.4, 3e-3 ...) 3. complex value (3.4+2e-3i) 4. basic function like cos, sin as java Math class can do. 5. complex function like f(x)=2*x+5 and g(x)=3*f(x+2)-x 6. user define function writen in java 7. user define gramar like g(x)=x#x (# is a custom operator) (this is managed by ExpressionModel) 8. catalog (set of functions) 9. XML configuration file (for storing/loading user functions and user define gramar) 这个项目用来进行简单的实验