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9 lines
453 B
9 lines
453 B
2 years ago
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Exercise 4.9: Many languages support a variety of
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iteration constructs, such as do, for, while, and
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until. In Scheme, iterative processes can be expressed in terms of
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ordinary procedure calls, so special iteration constructs provide no essential
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gain in computational power. On the other hand, such constructs are often
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convenient. Design some iteration constructs, give examples of their use, and
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show how to implement them as derived expressions.
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