"I'm still feeling young," says Ron, "but I'm afraid this is my last mathematical hurrah because I'll be 90 on 6-6-36. I need somebody to really take it over." So here's to Ron Gordon — ...

The last Square Root Day was April 4, 2016 – 4/4/16 – and the next one won’t take place until June 6, 2036 – 6/6/36. Square Root Day was first celebrated on September 9, 1981. It was ...

This is the only such day in a 20-year span from 4/4/16 to 6/6/36. There are nine Square Root Days and they fall upon the same nine dates in every century. The event was devised by Ron Gordon ...

Then there was root-mean-square (RMS) voltage. For those nice sine waves, you took the peak voltage and divided by the square root of two, 1.414 or so. You know that kid in the front of the class?

To find the cube root of a number, we have to find out which number when multiplied by itself twice gives that number. This is the same as trying to find out the length of the side of a cube when ...

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.