What is the function of 0?

1, the hydrological station records the water level with 0, and the water level is rising and falling;

2. The weather station records the temperature with 0, and 0 degrees Celsius is the temperature at which water freezes;

3. The test score can be 0;

4. The score and integral of ball games are scored with 0;

5. The altitude is recorded by 0, which is not without altitude, but the same altitude as the sea level in the Yellow Sea;

6. The starting point of highway mileage is recorded with 0;

7. On the scale, 0 indicates the starting point, and 0 indicates the dividing point of positive and negative numbers on the number axis.

Digital analysis:

The earliest tools used by human beings to count are fingers and toes, but they can only represent numbers within 20. When the number was large, primitive people mostly counted pebbles and beans. Gradually, people were not satisfied with counting by grains, so they invented the method of knotting to describe counting, and described counting on hides, bones, trees and stones.

In ancient China, counting was done with sticks made of wood, bamboo or bones, which was called counting chip.

These counting methods and symbols gradually became the earliest digital symbols (numbers). Today, all countries in the world use Arabic numerals as standard numbers.