It’s a problem that sounds simple, but the best minds in mathematics have puzzled over it for generations: A salesman wants to hawk his wares in several cities and return home when he’s done. If he’s ...

Scientists at London's Imperial College have built a miniature tourist map that could lead to a new generation of handy computers. The team etched a map of London's city center onto a 1-square-inch ...

Most people who use navigation apps, be they Google Maps, Waze, or Apple Maps, are typically interested in the fastest route. It doesn’t matter how long it is as long as it's the fastest way to arrive ...