Many applications require the parsing of mathematical expressions. The main objective of this project is to provide a fast and easy way of doing this. muParser is an extensible high performance math parser library. It is based on transforming an expr

本程序为一个实用的函数式计算器，除进行加减乘除计算外还支持三角函数，对数，角度等运算，还支持状态保持和读取-This program is a utility function calculator, in addition to Math computations also support trigonometric, logarithmic, angle and other operations, also supports the state to maintain and read