20 lines
413 B
Python
20 lines
413 B
Python
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from mpl_toolkits.mplot3d import Axes3D
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from matplotlib import cm
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import matplotlib.pyplot as plt
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import numpy as np
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fig = plt.figure(figsize=(10, 8))
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ax = fig.add_subplot(111, projection="3d")
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X = np.arange(-5, 5, 0.25)
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Y = np.arange(-5, 5, 0.25)
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X, Y = np.meshgrid(X, Y)
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Z =-1*(X**2 + Y**3)
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surf = ax.plot_surface(
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X, Y, Z, rstride=1, cstride=1, cmap=cm.jet, linewidth=0, antialiased=True
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)
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plt.show()
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