matplotlib绘图9 3D绘图

import matplotlib.pyplot as plt import numpy as np from mpl_toolkits.mplot3d import Axes3D #3D图模块包 #生成3D图坐标 fig = plt.figure() ax = Axes3D(fig) x = np.arange(-4,4,0.25) y = np.arange(-4,4,0.25) X,Y

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