CODE EXAMPLE FOR PYTHON

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theta = 2 * np.pi * np.random.random(1000)
r = 6 * np.random.random(1000)
x = np.ravel(r * np.sin(theta))
y = np.ravel(r * np.cos(theta))
z = f(x, y)
ax = plt.axes(projection=’3d’)
ax.plot_trisurf(x, y, z,cmap=’viridis’, edgecolor=’none’);