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11 lines
591 B
11 lines
591 B
2 years ago
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Exercise 3.76: Eva Lu Ator has a criticism of
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Louis’s approach in Exercise 3.75. The program he wrote is not modular,
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because it intermixes the operation of smoothing with the zero-crossing
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extraction. For example, the extractor should not have to be changed if Alyssa
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finds a better way to condition her input signal. Help Louis by writing a
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procedure smooth that takes a stream as input and produces a stream in
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which each element is the average of two successive input stream elements.
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Then use smooth as a component to implement the zero-crossing detector
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in a more modular style.
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