24 lines
417 B
Python
24 lines
417 B
Python
"""
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step
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~~~~~~~
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Plots a graph of a step function."""
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import numpy
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import matplotlib.pyplot as plt
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z = numpy.arange(-5, 5, .02)
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step_fn = numpy.vectorize(lambda z: 1.0 if z >= 0.0 else 0.0)
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step = step_fn(z)
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fig = plt.figure()
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ax = fig.add_subplot(111)
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ax.plot(z, step)
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ax.set_ylim([-0.5, 1.5])
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ax.set_xlim([-5,5])
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ax.grid(True)
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ax.set_xlabel('z')
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ax.set_title('step function')
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plt.show()
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