虽然系统有给出划圆的直接的函数，但是没有让读者了解具体的计算机系统内部的绘制过程，本程序以顺圆为例，以逐点逼近法画出了并且是可以从任意点开始的顺圆的程序-Although the system is given a round of direct function, but did not allow the reader to understand the specific computer systems within the mapping process, the procedures

这是一个简单的高次逼近函数的函数图像，它可以作为去噪的阈值函数，在阈值处是连续的。函数中的n值可以自己任意设置。还有几个阈值函数和阈值，在小波变换的每一层上选择不同的阈值-This is a simple high-order function of the approximation functions of the image, it can be used as a threshold function of de-noising,The function is continuous a

Through fitting, function approximation, numerical calculations, the fitting function image,