The proof, known to be so hard that a mathematician once offered 10 martinis to whoever could figure it out, uses number ...

When counting squares in a grid, don’t stop at the smallest boxes; the bigger ones are hiding too. The rule is simple: In an n × n grid—where n is the number of squares both horizontally and ...

If we want to keep West Hollywood’s economy strong, we have to make sure our systems are helping, not hindering, the people ...