The golden section refers to dividing the whole into two parts, and the ratio of the larger part to the whole is equal to the ratio of the smaller part to the larger part, which is about 0.6 18. This ratio is recognized as the most aesthetic ratio, so it is called the golden section.

Geometric significance of golden ratio

The golden ratio is an irrational number, defined as (√5- 1)/2, which is widely used in many fields, such as mathematics, physics, architecture, art and even music.

The unique property of golden section is first applied to segment. If the total length of a line segment is the denominator of the golden ratio plus the unit length of the molecule, if we divide it into two halves, the long one is the denominator unit length and the short one is the molecular unit length, then the ratio of the short line length to the long line length is the golden ratio.