Consider this sequence of numbers: 5, 7, 9. Can you spot the pattern? Here’s another with the same pattern: 15, 19, 23. One more: 232, 235, 238. “Three equally spaced things,” says Raghu Meka, a ...

Hear that change jingling in my pocket? Good. I have two little questions for you. I have a quarter, a dime and a nickel. How much money DO I have? I have three coins. How much money COULD I have? The ...

Leonardo of Pisa, also known as Fibonacci, is best remembered today for introducing a sequence of numbers: 0, 1, 1, 2, 3, 5 and so on, each number after 0 and 1 ...

Forbes contributors publish independent expert analyses and insights. GrrlScientist writes about evolution, ecology, behavior and health. This article is more than 6 years old. Whether you are giving ...

Barbie caught a lot of flack back in the ’90s for declaring, “Math class is tough!” Today we find ourselves in the disorienting position of defending her. We recently got a note from an anonymous ...

As a young math student, Rachel Eng memorized formulas and theorems, but she never learned about the mathematicians who developed them. Nor did she hear about the controversies and dramas that ...

Forbes contributors publish independent expert analyses and insights. GrrlScientist writes about evolution, ecology, behavior and health. Those of you who have been following my writing for a few ...