which can be multiplied out to give x^2 = x + 1. An approximate solution is
1.618. We can easily check this. If you type 1.618 into a calculator and multiply it
by itself you get 2.618 which is the same as x + 1 = 2.618. This number is the
famous golden ratio and is designated by the Greek letter phi, Φ. Its definition
and approximation is given by and this number is related to the Fibonacci
sequence and the rabbit problem (see page 44).
marcin
(Marcin)
#1