One of my fellow contributors here recently wrote a post about leap years and why we have them. This reminded me of modular arithmetic and the formula for calculating the day of the week for any date ...

Discrete mathematics gets easier when you know how to approach proofs. Direct reasoning, induction, and contradiction each have specific steps that can be learned and practiced. Pairing these methods ...

This article was published in Scientific American’s former blog network and reflects the views of the author, not necessarily those of Scientific American My first musical love was Beethoven. The 2nd ...

Hidden inside a simple color-mixing analogy is one of the most elegant ideas in cryptography, a mathematical trap door that ...