在控制台下利用高斯消元法实现直线拟合，多项式拟合，指数函数拟合，幂函数拟合，大家可以利用它进行二次开发-In the console environment，I using the Gaussian elimination method to achieve linear fitting, polynomial fitting, exponential fitting, fitting power function, we can use it for secondary development

对电压数据进行多项式拟合或指数拟合，并进行频谱分析-Voltage data polynomial or exponential fitting and spectral analysisVoltage data polynomial or exponential fitting and spectral analysis