使用MFC编写的能够实现计算器功能的源码，可以实现加、减、乘、除、乘方、开方、三角函数求值等功能~-Written using MFC to achieve the calculator function of the source code can be add, subtract, multiply, and, power, square root, trigonometric functions, evaluation and other functions ~

离散数学上机作业，用MFC实现，一个简单的计算器， 可实现求交并等-Discrete mathematics on the machine operation, using MFC, a simple calculator to the intersection and wait