简单计算器，可计算三角函数，支持科学计算，和简单运算-Simple calculator, calculate trigonometric functions in support of scientific computing, and simple operation

一个很好的计算器软件和源码，有很好的注释，能够实现三角函数乘方等功能，很适合C#入门实践的人。-A good calculator software and source code is well commented, power and other trigonometric functions can be achieved, it is suitable for people who practice C# Getting Started.

C++做的计算器。具有简单的加减乘除和三角函数-Do the calculator C++. Simple addition and subtraction, multiplication and division, and trigonometric functions