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Edit history of sicp-ex-2.80

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22013-08-16 13:00:46+4 -2 line(s)[View this version, source] [Diff to previous]
Simplified the solution for complex numbers. (and (= x 0) (= y 0)) is equivalent to (= x y 0). Also added blank lines so that code starts at a newline.
12011-08-23 09:31:38+22 -0 line(s)[View this version, source] [Diff to current|previous]
add solution
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