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Pavling/gist:319461

Created March 2, 2010 11:57
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gistfile1.txt
>> a1 = [3, 1, 2]
=> [3, 1, 2]
>> a2 = [2, 3, 4]
=> [2, 3, 4]
>> (a1 - a2) + (a2 - a1)
=> [1, 4]
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