For example, a triangle wave’s RMS voltage is the peak value divided by the square root of three. However, the biggest problem is that the answer is nonsense. It is even easier to divide by ten ...

Mathematicians once turned up their noses at imaginary numbers. But complex analysis actually simplifies math and physics.

[MindYourDecisions] presents a Babylonian tablet dating back to around 1800 BC that shows that the hypotenuse of a unit square is the square root of two or 1.41421. How did they know that?

To do so, enter the following formula in cell B3: When you hit Enter, Excel will return the value of the cube ... Read: How to find the Square and Square Root of a number in Excel.

For certain values we can achieve this without a calculator ... Notice this is different to the square root symbol because there is a small subscript 3 in front of the \(\sqrt{}\).