What is the golden ratio?

Introduction:

The golden ratio, also known as Huang Jinlv, means that there is a certain mathematical proportional relationship between the parts of things, that is, the whole is divided into two parts, and the ratio of the larger part to the smaller part is equal to the ratio of the whole to the larger part, and its ratio is about 1: 0.6 18, that is, the long segment is 0.6 18 of the whole segment. 0.6 18 is recognized as the most beautiful scale figure. The above ratio is the ratio that can most arouse people's aesthetic feeling, so it is called the golden section. Application has magical charm in life.

Most people think that the origin of the golden ratio comes from Pythagoras. It is said that in ancient Greece, Pythagoras was walking in the street one day. Before he passed the blacksmith's shop, he heard the sound of striking the iron, so he stopped to listen. He found that blacksmiths have a regular rhythm in striking iron, and the proportion of this sound was expressed mathematically by Pythagoras, which has been applied in many fields. Later, many people specially studied it. Kepler called it "sacred division", and some people called it "golden section". Pythagoras' law appeared only 1000 years after the completion of the pyramid, which shows that it existed very early. I just don't know the answer.