| home | stands | games | about | school | links |
If we take the ratio of two successive numbers in Fibonacci's series, (1, 1, 2, 3, 5, 8, 13�) and we divide each by the number before it, we will find the following series of numbers:`1
1/1 = 1, 2/1 = 2, 3/2 = 1�5, 5/3 = 1�666..., 8/5 = 1�6, 13/8 = 1�625, 21/13 = 1�61538...
It is easier to see what is happening if we plot the ratios on a graph:
The ratio seems to be settling down to a particular value, which we call the golden ratio or the golden number. It has a value of approximately 1�618034. The golden ratio 1�618034 is also called the golden section or the golden mean or just the golden number. It is often represented by a Greek letter Phi j.