RECOUNTING TRAUMATIC SECRETS
نویسندگان
چکیده
منابع مشابه
Recounting the Rationals: Twice!
We derive an algorithm that enables the rationals to be efficiently enumerated in two different ways. One way is known and is credited to Moshe Newman; it corresponds to a deforestation of the so-called Calkin-Wilf tree of rationals. The second is new and corresponds to a deforestation of the Stern-Brocot tree of rationals. We show that both enumerations stem from the same simple algorithm. In ...
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It is well known (indeed, as Paul Erdős might have said, every child knows) that the rationals are countable. However, the standard presentations of this fact do not give an explicit enumeration; rather they show how to construct an enumeration. In this note we will explicitly describe a sequence b(n) with the property that every positive rational appears exactly once as b(n)/b(n+1). Moreover, ...
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ژورنال
عنوان ژورنال: Journalism Practice
سال: 2011
ISSN: 1751-2786,1751-2794
DOI: 10.1080/17512786.2010.506059