Somewhere around middle school, you learned about squaring numbers and the inverse, finding the square root of a number, but a little reminder can't hurt. You square a number when you multiply it by ...

Microsoft Excel is a powerful tool for carrying out complex calculations. If you work on Excel, then you might come across performing mathematical operations almost every day. Sometimes, we face ...

Our February Insights puzzle sent readers on a treasure hunt based on complex numbers. First we provided a bit of a primer, demonstrating that complex numbers (expressions of the form a + bi, where ...