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15 lines
415 B
15 lines
415 B
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Exercise 3.57: How many additions are performed
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when we compute the
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n
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th
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Fibonacci number using the definition of
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fibs based on the add-streams procedure? Show that the number of
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additions would be exponentially greater if we had implemented (delay ⟨exp⟩)
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simply as (lambda () ⟨exp⟩), without using the
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optimization provided by the memo-proc procedure described in
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3.5.1.192
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