When, as a young trainee in a London dealing room, I was first introduced to Fibonacci numbers I was, as are most people, skeptical. The analysis consists of calculating significant levels based on a ...

This weird, simple, math sequence is also known as the Audioactive Sequence, presumably to make it sound less goofy than ‘speak-n’-spell.’ It is that simple, and it is that funny. When a million ...

Math instruction in the United States traditionally follows a sequence: Algebra I in eighth grade, followed in succeeding grades by Geometry, Algebra II, and Precalculus. The progression is designed ...

Some of the most satisfying number puzzles require little mathematical know-how. In fact, cracking the one below calls for thinking that is quite nonmathematical. I don’t know where or when I first ...