Stanford mathematics professor Keith Devlin tells NPR's Audie Cornish "it's actually a very clever use of simple mathematics."

史丹佛大学数学教授Keith Devlin告诉NPR记者Audie Cornish：“这其实是一个从最简单的数学提炼出的非常高明的方式。”

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Mr. KEITH DEVLIN (Center for the Study of Language and Information, Stanford): Hello, Scott.

NPR: The Math Behind Pellicano's Code

We're joined by our math guy, Keith Devlin, from Palo Alto, California.

NPR: The Math Behind Pellicano's Code