Catastrophe theory, sleep, and the economy
- The New York Times, October 8, 2012
Essays
It’s My Birthday Too, Yeah→
/The day Johnny Carson met the birthday problem
- The New York Times, October 1, 2012
Proportion Control→
/The myth and math of the golden ratio
- The New York Times, September 24, 2012
Friends You Can Count On→
/Why your friends have more friends than you do
- The New York Times, September 17, 2012
Singular Sensations→
/Cowlicks, fingerprints, and index theory
- The New York Times, September 10, 2012
The Hilbert Hotel→
/An exploration of infinity as this math series, not being infinite, comes to an end
- The New York Times, May 9, 2010
Group Think→
/Group theory, one of the most versatile parts of math, bridges the arts and sciences
- The New York Times, May 2, 2010
Chances Are→
/The improbable thrills of probability theory
- The New York Times, April 25, 2010
It Slices, It Dices→
/The integral, perhaps mathematics’ most graceful sign, is a foundation of calculus
- The New York Times, April 18, 2010
Change We Can Believe In→
/Differential calculus can show you the best path from A to B, and Michael Jordan’s dunks can help explain why that is
- The New York Times, April 11, 2010
Take It to the Limit→
/Archimedes recognized the power of the infinite, and in the process laid the groundwork for calculus
- The New York Times, April 4, 2010
Power Tools→
/In math, the function of functions is to transform
- The New York Times, March 28, 2010












Einstein's boyhood proof of the Pythagorean theorem foreshadows the scientist he later became.
- The New Yorker
November 19, 2015