使用matlab进行函数插值逼近的例程，效果很好，有注释，易读性好！-Using matlab function interpolation approximation routines, well, there are notes, legibility is good!

函数逼近的matlab程序，基于SmartYTBJ算法的一种函数逼近的matlab例程(Function approximation of the matlab program, based on the SmartYTBJ algorithm of a function approximation matlab routines)