What is the golden number in Mathematics?
Also called the golden ratio, divine ratio, or golden ratio, the golden number , designated by the Greek letter φ (phi), is defined as the only a / b relationship between two lengths a and b.
Like Pi, it is an irrational number that corresponds to the unique solution of the equation x 2 = x + 1.
Its origin dates back to the pyramids of Cheops and it would have been used first in geometry. The first text evoking the golden number, however, was written by Euclid in 300 BC, but it is Plato who seems to have dedicated a study in his own right. Later, it will be related to the Fibonacci sequence and will be synonymous with beauty in the 20th century.
It is used in geometry and arithmetic, but it is everywhere around us in nature, hence its connection to beauty and perfection. What is the golden number in Mathematics?