源码,数学表达式解析器,可以解析并自动计算输入的公式-source, the mathematical expression parser, and can automatically calculate the analytical input to the formula

徐士亮常用c语言算法集，包含了许多数学公式及复杂运算的源代码，数学建模必备工具-Xu Shiliang common set of algorithms c language, contains many mathematical formulas and complex calculations of the source code, an essential tool for mathematical modeling

输入一个数学计算公式，给出中缀式和后缀式的计算公式。-Enter a mathematical formula, the formula is given infix and postfix formula.