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BMUG PD-ROM 1995 Fall
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PD-ROM F95.toast
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Programming
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Programming Languages
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XLisp 2.1e3 ƒ
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lisp
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fib.lsp
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Lisp/Scheme
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1993-10-15
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192 b
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[
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]
(defun fib (x)
(if (< x 2) x
(+ (fib (- x 1)) (fib (- x 2)))))
(defun fibi (n)
(do ((i 1 (1+ i))
(fib-i-1 0 fib-i)
(fib-i 1 (+ fib-i fib-i-1)))
((= i n) fib-i)))