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12 lines
423 B
12 lines
423 B
2 years ago
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Exercise 3.64: Write a procedure
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stream-limit that takes as arguments a stream and a number (the
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tolerance). It should examine the stream until it finds two successive
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elements that differ in absolute value by less than the tolerance, and return
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the second of the two elements. Using this, we could compute square roots up
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to a given tolerance by
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(define (sqrt x tolerance)
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(stream-limit (sqrt-stream x) tolerance))
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