Etc. (Miscellaneous)

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My Erdös number: 3

• “On the Distribution of the Greatest Common Divisor,” Persi Diaconis and Paul Erdös, Lecture Notes-Monograph Series , Vol. 45, A Festschrift for Herman Rubin (2004), pp. 56-61.
• “Updating Subjective Probability,” Persi Diaconis and Sandy Zabell, in Decision making: descriptive, normative, and prescriptive interactions, David E. Bell and Howard Raiffa, eds., Cambridge University Press (1988).
• “Inventing New Signals,” J. McKenzie Alexander, Brian Skyrms and Sandy Zabell, Dynamic Games and Applications vol. 2, issue 1, pp. 125–145 (March 2012).

Don Knuth and Me

Back in 1999, I spotted a typo while reading Knuth’s Digital Typography. I sent him an email pointing out the error (it was a very minor one), and forgot about it. Within six months, I received a letter from him with a brief handwritten note — and a cheque for $2.56. This is one of my most prized possessions.