Math What is the Golden Ratio? What is the Golden Ratio Formula for Middle School Math?

Divide a 1-segment line segment into two segments to form the optimal point of the ratio.

Use C to divide the line segment AB into AC and BC, and to choose C is the best way to determine the proportion of the line segment AC AB=BC AC, and set AC=X, then BC=1-X (regard the line segment AB as a unit) generation.

ac/ab=bc/

Solving x is equivalent to saying that point c is the best point. Later, it was called the ** split point.

Modern segmentation is widely used in industry, agriculture, and almost all industries, even buying and selling can be used, can also be used at home, like steamed steamed bread, I don't know how much baking powder is under 1 kilogram of flour, only know that it is 10 grams, then you can try it, in the ** segmentation point is grams, steamed steamed steamed bread, feel that there is more or less baking powder, the second time between grams and 10 grams, try it, so that you can reduce the number of experiments. In the laboratory, it is also possible to reduce the number of experiments.

**Partition. Also known as:

**Law. It refers to a certain mathematical proportional relationship between the parts of a thing, that is, the whole is divided into two, and the ratio of the larger part to the smaller part is equal to the ratio of the whole to the larger part, and the ratio is 1 or, that is, the long paragraph is the whole paragraph and is recognized as the most aesthetically significant proportional number. The above proportions are the proportions that are the most aesthetically pleasing, so they are called **divisions.

Middle School Mathematics ** Proportional Formula: ( 5-1) 2.

**A split point is when a line segment is divided into two parts so that the ratio of one part to the total length is equal to the ratio of the other part to this part. The ratio is an irrational number, expressed as a fraction as (5-1) 2, and the approximation of its first three digits is. Because the shape designed according to this ratio is very beautiful, it is called ** division, also known as the ratio of the middle and the middle.

**Split Point Aesthetic Value:

Because it has aesthetic value in the plastic arts, in the length and width design of arts and crafts and daily necessities, the use of this ratio can arouse people's sense of beauty, and it is also widely used in practical life.

The ratio of some line segments in the building is scientifically divided, and the announcer on the stage is not standing on the front of the stage, but on the side of the stage, and the position of the segmentation point of the stage length is the most beautiful, and the sound transmission is the best.

Proportion is a mathematical proportional relationship. **Proportion has strict proportionality, artistry, harmony, and contains rich aesthetic value. It is generally taken at the time of application, just as pi is taken at the time of application.

Divide the height from the soles of your feet to your navel by your height to see if it's close If it's close, then congratulations, your figure is **The proportions are perfect.

Proportionsis defined as (5-1) 2Irrational numbers。It is used in a wide range of levels, such as: mathematics, physics, architecture, art and even **.

The unique properties of proportions are first applied to splitting a line segment.

If there is a segment whose total length is the denominator of the ratio.

Add the unit length of the numerator, if we divide it into two halves, the long is the length of the denominator unit, and the short one is the length of the numerator, then the ratio of the length to the length of the long line is the proportion. **Ratio approximately: 1.

Split ratioApplication in life:

1. Applied to photography, the photographic works taken with the best proportion are more in line with the physiological structure of the human eye, making it easier for people to discover its beauty.

2. Applied to human body sculpture, the famous statues of Venus with broken arms in ancient Greece and Apollo, the god of the sun, were extended to their legs when designed, so that the ratio of their height to the height was applied to painting, in Leonardo da Vinci's work "Vitruvian Man".

Mona Lisa and The Last Supper

** division is used.

4. Applied to books, the best proportion of books, newspapers, magazines make people more comfortable to read.

5. Applied to displays, 16:9 monitors are becoming more and more popular, which is also related to the first ratio of reading. The business cards that people print are also in **proportion.

6. Applied to the stage, the host of the program will never stand on the stage, but always stand at 1 3 places on the stage, and the position near the top of the stage is the best position.

**The scale is: (5-1).

**The characteristics of the rectangle are: length and width = width length - width).

The role of this value not only exists in art fields such as painting, sculpture, architecture, etc., but also has a non-negligible role in management, engineering design, etc.

Because it has aesthetic value in the plastic arts, in the length and width of the arts and crafts and daily necessities design, the use of this ratio can cause people's sense of beauty, and the application in practical life is also very extensive, the ratio of some line segments in the building is scientifically divided, and the announcer on the stage is not standing on the front of the stage, but on the side of the stage, =.

The position of the ** dividing point of the stage length is the most beautiful, and the sound propagation is the best. Even in the plant kingdom, there are places where ** segmentation is adopted, if you look down from the top of a young branch, you will see that the leaves are arranged according to the law of **segmentation.

In many scientific experiments, a method is commonly used in the selection scheme, that is, the optimization method, which can enable us to reasonably arrange a smaller number of tests to find a reasonable formula and suitable process conditions. It is precisely because it has a wide and important application in architecture, literature and art, industrial and agricultural production and scientific experiments that it is called"**Partition. "。

**Ratio is a fidder-free number defined as (5-1) 2. **Proportions are fixed.

The levels that are used are quite broad, such as eggplant: mathematics, physics, architecture, art and even **. The unique properties of proportions are first applied to splitting a line segment.

Meaning:

Dividing a line segment into two parts, the ratio of the length of the shorter part to the length of the longer part is the ratio of the length of the longer part to the overall length, and the ratio is an irrational number, and the approximation of the first three digits is.

The above content reference: Encyclopedia-** ratio.

Things in nature are mostly in accordance with the ** proportions. For example, the ratio of the width to length of ordinary leaves, the ratio of the length of the butterfly's body to the length of its wings, the ratio of the head to the body of the human body, etc., are all in line with the best proportions. It can be said that the best proportion is always widely present in nature.

1. Proportions can be used as a technique for painting and photography. The drawings or photographs drawn with the best scale are more in line with the physiological structure of the human eye, making it easier for people to discover its beauty and resonate with people.

2. On the stage, the proportion of the division point is more conducive to the transmission of sound. Therefore, singers or performers who want their voices to be more beautiful and appealing should stand on the top of the stage, about one-third of the stage.

3. The best ratio of time, season and temperature. July and August of autumn every year are just at the best dividing point of the year, which is the best time for human immunity.