2004-01-16 10:42:03 -05:00
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;;; This file is part of the Scheme Untergrund Library.
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2004-01-16 10:37:46 -05:00
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;; This code, written by Taylor Campbell, is in the public domain.
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(define (circumference r) (* '#,(pi) 2 r))
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(define (area r) (* '#,(pi) (expt r 2)))
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