In theory, quantum physics can bypass the hard mathematical problems at the root of modern encryption. A new proof shows how.

You can’t find your keys, you keep forgetting names, or perhaps you missed an appointment. For many people in middle age or older, simple acts of forgetfulness like these are scary because they raise ...

The calculator on your Apple devices can do more than add, subtract, multiply and divide. Here's how it can help you with all ...

Math isn’t just about answers—the process matters, too. These strategies spotlight reasoning and reveal student thinking.

Jenny Quinn, executive director of the Seattle Universal Math Museum, shows off a solved Fibonacci sequence puzzle. (GeekWire ...

Mastering Excel goes far beyond SUM and VLOOKUP. By learning functions like COUNT, AVERAGE, SUMIF, SUBTOTAL, XLOOKUP, and INDEX/MATCH, you can find opportunities to improve your Excel sheet. Some ...