Input the number "five" into your calculator. Raise it to the .5 power, then mulitiply by .5.
Square your result and subtract 1.
Take the reciprical of your result and add 1.
Sometimes we refer to this magic number as Phi, using the greek symbol. Above, we just looked at a specific case for determining Phi. Now, let's look at two more general methods for finding this magic number using a calculator.