Tue, 18 Sep 2007 07:36:13 +0200 haftmann renamed constructor RatC to Rational
Tue, 18 Sep 2007 07:36:12 +0200 haftmann clarified evaluation code
Tue, 18 Sep 2007 07:36:11 +0200 haftmann adjusted
Tue, 18 Sep 2007 07:36:10 +0200 haftmann clarified remark
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