No, I don’t know how to pronounce Ayliean. My Scots Gaelic isn’t what it used to be. (It never was.) And I’m not so sure about Hitomezashi either, as my Japanese isn’t what it used to be. (But I did… Read More ›
Math
Trains, Rock Paper Scissors, & Hannah Fry: What do these three have in common?
How can Rock Paper Scissors (RPS) have a winning strategy? It’s all just luck, isn’ it? Well, no, actually. It’s true that if your opponent plays strictly randomly, then you have no winning strategy. It’s really all just luck. But… Read More ›
Everyone mispronounces omicron! (Well, almost everyone.) And it means more than just a COVID-19 variant…
Right now—with good reason—everyone is focused on Omicron as the name of the new COVID variant. But most people are unsure how to pronounce the word, or they (confidently) mispronounce it. And they also don’t know what it means. I’m… Read More ›
The hidden meaning of crypto
What does the word “crypto” mean to you? For many decades it has been a term of art in applied mathematics—shorthand for both “cryptography” and “cryptology,” being thereby particularly useful for those of us who don’t want to argue about… Read More ›
Never—no, always—take the shortcut!
“Abjure the hypotenuse!” That’s what our busy high school dean (also assistant headmaster and sole college counselor) George Grenville Benedict—called G2 by the students (behind his back)—was famous for saying. As my classmate Alba Briggs publicly observed on screen in… Read More ›
Music to our ears
All math teachers and mathematicians love music, but not all musicians love math. That has been my experience, at any rate, based on a fairly large sample. Recently I listened to a Freakonomics episode featuring British mathematician Sarah Hart, in… Read More ›
Should you switch?
No, I don’t mean switch from Coke to Pepsi, nor from math to linguistics. I am not even referring to the Monty Hall problem, though that seems more likely under the circumstances. I am talking about the fascinating two-envelope paradox…. Read More ›
Democracy? How could geometry tell us anything about democracy? To find out, read Shape, by Jordan Ellenberg!
Even if you don’t usually read applied math books, you need to read Shape, by Jordan Ellenberg. The subtitle tells you more than the title: The Hidden Geometry of Information, Biology, Strategy, Democracy, and Everything Else. Yes, I know, it… Read More ›
They say that America’s math curriculum doesn’t add up. But is that true?
What’s wrong with America’s math curriculum? I’ve written endlessly on this subject, but for now I want to focus on the claims of Steven Levitt and others in a new version of an earlier Freakonomics episode. Levitt et al. are… Read More ›
A Prime Mistake
To be sure, nine, along with three and seven, are great favorites of European folklore. No one knows for sure why just those numerals achieved such prominence. The reference to the fact that all of them are primes does not go far. So says… Read More ›
Learning Strategies 