因为本程序使用 C# 的反射功能动态生成数学表达式并计算其值,所以重画时有点慢，如果你的计算机的速度不是非常快的， 就不要在窗口改变大小时强制重绘，而是通过点击发“刷新”按钮重绘。 -Because this program uses C# reflection function dynamically generated mathematical expressions and calculates its value, so when you re-painting a bit slo

利用Math。Acos实现余弦函数的编写，原理是基于C的。-Using Math. Acos achieve the preparation of cosine function, the principle is based on the C' s.

It s interface to graph in C++ Builder 6. It s very easy program with easy implementation, non class and heavy function. You try it.