Andrew Gelman details yet another case of apparent plagiarism by Edward Wegman. This one is a copy and paste from Wikipedia that manages to introduce an obvious error, claiming that a d-dimensional cube has only 2d vertices instead of 2^d. Gelman gets all sarcastic:

[Note to Drs. Wegman and Said: You can replace "2^n" by "2n" only if n=1 or 2. I checked by following the principles of statistical computation and making a graph in R: curve (2^x-2x, from=-2, to=5). I know it's a pain to do superscripts in Word, but next time you should really put in the effort to do it right.]

Hat tip: John Mashey.

**Update** Ouch