算术表达式解析器 .rar 支持变量和以下数学函数ABS, ATAN, COS, EXP, LN, ROUND,SIN, SQRT, SQR, TRUNC, NOT, BOOL, SGN\"-arithmetic expression parser. Rar support of the following variables and Math ABS, ATAN, COS, EXP, LN, ROUND, SIN, SQRT, SQR, TRUNC, NOT, BOOL, SGN &

不少程序须要用到数学表达式解析器，本代码力求简明快速做到这一点。-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

So how are we going to do it? Well before we start with coding, it is necessary to explain the mathematical background needed to fully understand the method used here in this article. I would strongly recommend to read and understand the math behind,