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22 lines
436 B
22 lines
436 B
2 years ago
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Exercise 2.21: The procedure square-list
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takes a list of numbers as argument and returns a list of the squares of those
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numbers.
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(square-list (list 1 2 3 4))
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(1 4 9 16)
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Here are two different definitions of square-list. Complete both of
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them by filling in the missing expressions:
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(define (square-list items)
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(if (null? items)
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nil
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(cons ⟨??⟩ ⟨??⟩)))
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(define (square-list items)
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(map ⟨??⟩ ⟨??⟩))
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