Students in the group began commenting that the symbol, which represents a number that when multiplied by itself equals another number, looked like a gun. The square root symbol. After several ...

Save guides, add subjects and pick up where you left off with your BBC account. The notation \(3^2\) and \(2^3\) is known as index form. The small digit is called the index number or power.

This May marks the only time a calendar has a Square Root Day in a 20-year span, with the last one being on April 4, 2016 and the next one on June 6, 2036. In fact, the day is so rare that it only ...