22 May 2018

Golden ratio

The golden ratio, also called Phi (\(\phi\)), is a number which has the following property:


The only positive solution of this \(2\)nd degree equation is:

\(\phi=\frac{1+\sqrt5}{2}\approx 1.6180339887498948482...\)

Golden rectangle
The golden ratio has applications in architecture (eg, the Parthenon in Greece), in painting (eg, by Leonardo Da Vinci, Salvador DalĂ­ and Piet Mondrian), in the dimensions of the books, in music and in the Nature.

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