复化三点Gauss-lengend公式求pi，是机器学习的例程，包括随机梯度算法，相对梯度算法，线性调频脉冲压缩的Matlab程序,重要参数的提取，构成不同频率的调制信号。- Complex of three-point Gauss-lengend the Formula pi, Machine learning routines, Including stochastic gradient algorithm, the relative gradient algorithm, LFM pulse compression of the Matlab program, Extract important parameters, Constituting the modulated signals of different frequencies.