-- Matlab 作图示例 x=-3:0.00003:3; y1=sin(x)./x; y2=x./sin(x); plot(x,y1,x,y2); -- Python 作图示例 import numpy as npimport matplotlib.pyplot as plt x = np.arange(-3, 3, 0.00003)y1 = 1/(np.sin(x)) * xy2 = (np.sin(x)) / x plt.plot(x, y1, x, y2)plt.show() 官方文档