An educator in the District demonstrates a simple mathematics diagnostic test in Washington. (Jahi Chikwendiu/The Washington Post)

Satyan Linus Devadoss is a fellow of the American Mathematical Society and a professor of applied mathematics and computer science at the University of San Diego.

As a mathematician, I have dreams about Pi Day : Strangers would offer me flowers, give up their seats on the subway and even let me cut in line during rush hour. After all, the power of mathematics is extraordinary, allowing us to land a rover on Mars, build a computer to outthink chess masters and use a phone to navigate anywhere in the world.