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From Diminutive Lemur, 5 Years ago, written in Plain Text.
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  1. from mpl_toolkits.mplot3d import Axes3D
  2. import matplotlib.pyplot as plt
  3. from matplotlib import cm
  4. import numpy as np
  5.  
  6.  
  7. fig = plt.figure()
  8. ax = fig.gca(projection='3d')
  9.  
  10. X = np.arange(-8, 8, 0.25)
  11. Y = np.arange(-8, 8, 0.25)
  12.  
  13. X, Y = np.meshgrid(X, Y)
  14.  
  15. Z = np.sqrt(X**2+Y**2)
  16.  
  17. surf = ax.plot_surface(X, Y, Z, cmap=cm.coolwarm, linewidth = 0, antialiased=False)
  18.  
  19. fig.colorbar(surf, shrink=0.5, aspect=5)
  20. plt.title('Wykres funkcji f(x,y)=(..)')
  21. plt.show()
  22.