The golden ratio is 1: 0.6 18. 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, and the ratio is about 0.6 18.

This ratio is recognized as the most aesthetic ratio, so it is called the golden section. In the 6th century BC, the Pythagorean school in ancient Greece studied the drawing methods of regular pentagons and regular decagons.

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In the 6th century BC, the Pythagorean school in ancient Greece studied the drawing methods of regular pentagons and regular decagons, and most of the origins of the golden ratio were thought to come from the Pythagorean school. 1: 0.6 18 is the golden section. This is a great discovery.

In the 4th century BC, eudoxus, an ancient Greek mathematician, first studied this problem systematically and established the theory of proportion. In his view, the so-called golden section refers to dividing the line segment with length L into two parts, so that the ratio of one part to the whole is equal to the other part. The simplest way to calculate the golden section is to calculate Fibonacci sequence 1, 1, 2, 3, 5, 8,1,2 1, ... from the second position to the next position, that is, 2/3, 3/5, 5/.