数学公式分析组件。可以计算 +,-,* /,sin,cos,tan，等20多个运算符。 如 y = a*sin(b)+(c-d)*cos(d),输入a,b,c,d就可以得到y-mathematical formula analysis components. We can count, -, * /, sin, cos, tan, and more than 20 other operators. If y = a * sin (b) (c-d) * cos (d), the importa

数学公式解析类，内附详细源代码和可执行Demo，包括c++和com的Sample -Mathematical formula parsing class, included detailed source code and executables Demo, including the c++ and the com of the Sample