The golden ratio () is also called the golden section (Latin: sectio aurea) or golden mean.Other names include extreme and mean ratio,medial section, divine proportion, divine section (Latin: sectio divina), golden proportion, golden cut, golden number, and mean of Phidias.
In mathematics and the arts, two quantities are in the golden ratio if the ratio of the sum of the quantities to the larger quantity is equal to the ratio of the larger quantity to the smaller one...
http://en.wikipedia.org/wiki/Golden_ratio
In mathematics and the arts, two quantities are in the golden ratio if the ratio of the sum of the quantities to the larger quantity is equal to the ratio of the larger quantity to the smaller one...
http://en.wikipedia.org/wiki/Golden_ratio
