Posts Tagged ‘ integer valued functions ’

Le Monde puzzle [#956]

April 4, 2016
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Le Monde puzzle [#956]

A Le Monde mathematical puzzle with little need of R programming but ending up being rather fascinating: Does there exist a function f from N to N such that (i) f is (strictly) increasing, (ii) f(n)≥n, and (iii) f²(n)=f(f(n))=3n? Indeed, the three constraints imply (a) f²(0)=0, hence that that f(0)=0, (b) f(1)=2 as it can be […]

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Special Issue of ACM TOMACS on Monte Carlo Methods in Statistics

December 10, 2012
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Special Issue of ACM TOMACS on Monte Carlo Methods in Statistics

As posted here a long, long while ago, following a suggestion from the editor (and North America Cycling Champion!) Pierre Lécuyer (Université de Montréal), Arnaud Doucet (University of Oxford) and myself acted as guest editors for a special issue of ACM TOMACS on Monte Carlo Methods in Statistics. (Coincidentally, I am attending a board meeting [...]

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