Archive for cut and paste

odd prime numbers

Posted in Books with tags , , , , on February 9, 2013 by xi'an

Just read a puzzling fact in Le Monde science leaflet: someone at the “Great Internet Mersenne Prime Search” (GIMPS) just found a prime number with 17 million digits and…it is the 48th prime number of the form 2p-1. Which just means it is an odd number. How odd a remark!!! And how wrong. In fact, the short news item meant that this is a Mersenne number, of the form 2p-1! Another victim of a hasty cut&paste, I presume…

R-ecap [-16]

Posted in Books, R, University life with tags , , , , , , , on March 27, 2011 by xi'an

This morning, I noticed that none of my R related posts had appeared on R-bloggers for the past fortnight… After investigating, this was caused by…cut-and-paste! Indeed, when advertising about the special issue of TOMACS Arnaud Doucet and I edit about Monte Carlo methods in Statistics, I copied the main parts from the pdf announcement, straight out of Acrobat, and the word “field” was used, involving a ligature between the f and the i that did not get copied in proper UTF-8:

error on line 434 at column 330: Input is not proper UTF-8, indicate encoding ! Bytes: 0x0C 0×65 0x6C 0×64

So here are the entries in the ‘Og for the past 16 days that could have been of interest for R-bloggers readers:

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