函数发生器的da模块编写代码。可以实现波形：正弦波、方波、锯齿波等。-The function generator da modules write code. Waveforms: sine wave, square wave, sawtooth, etc..

One has to input the values of the parameters X, X1, M, g, f where X denotes the given sample set X1 denotes the sample set, where the function is to be reconstructed M denotes the given positive integer g is a generator for the shift inv