http://wordie.org/words/rational Comments for the word 'Rational' http://wordie.org http://wordie.org/words/rational#comments "You mean it's okay to say something that's wrong as long as the reason is right? Of course, why else go to the trouble of being a rational being." Umberto Eco. Foucault's Pendulum. Fri, 15 Aug 2008 05:25:44 +0000 http://wordie.org/words/rational#comments http://wordie.org/words/rational#comments A rational number may be written as the quotient of two integers, that is, in the form a/b for some two integers a and b.<br /><br />Some famously irrational numbers include the square root of two, π, and e, the base of natural logarithms.<br /><br />How many rational numbers are there? Infinitely many. But only countably infinitely many: as the rationals may be set in one-to-one correspondence with the integers, the two sets have the same cardinality. Fri, 16 Nov 2007 05:40:54 +0000 http://wordie.org/words/rational#comments