Python知识整理_1
3D画图import numpy as npimport matplotlib.pyplot as pltfrom mpl_toolkits.mplot3d import Axes3D# 定义等高线高度函数def f(x, y): return (1 - x / 2 + x ** 3 + y ** 3) * np.exp(-x ** 4 - y ** 2)+np.tan(np....
