0 means nothing, nothingness, beginning, starting point, fragmentary, zero, etc. 0 is an integer between-1 and 1, which is the smallest natural number and also a rational number. The standard number 0 was invented by ancient Indians around the 5th century. They first use black dots to indicate zero, and then gradually become "0".

0 has many meanings, such as: nothing, nothingness, beginning, starting point, fragmentary, zero and so on. 0 is an integer between-1 and 1, which is the smallest natural number and also a rational number. 0 is neither positive nor negative, but the dividing point between positive and negative numbers. 0 has no reciprocal, the reciprocal of 0 is 0, the absolute value of 0 is 0, the square of 0 is 0, the square root of 0 is 0, the cube root of 0 is also 0, 0 times any number equals 0, and the power of 0 of any number except 0 equals 1. 0 cannot appear as denominator or divisor, all multiples of 0 are 0, and 0 divided by any non-zero real number equals 0.

0 is an extremely important number, and the concept of 0 has existed in other regions for a long time. In 3000 BC, Babylonians knew how to use zero to avoid chaos. In ancient Egypt, as early as 2000 BC, some people used special symbols to record zeros in bookkeeping. Maya civilization first invented the special font 0. In Mayan numerals, 0 is represented by a pictographic symbol like a shell.

The standard number 0 was invented by ancient Indians around the 5th century. They first use black dots to indicate zero, and then gradually become "0". In eastern countries, mathematics is mainly based on operation (in the west, geometry was written at the beginning, "nine numbers of Indians, plus the 0 symbol invented by Arabs, can write all the numbers). For some reason, when the symbol 0 was first introduced to the west, it caused confusion in the west, because at that time, the west thought that all numbers were positive numbers, and the number 0 would make many formulas and logics untenable (such as dividing by 0), and even thought it was a devil's number, so it was forbidden to use it. It was not until about 15 and 16 centuries that zero and negative numbers were gradually recognized by westerners, which led to the rapid development of western mathematics.

Another history of 0: the discovery of 0 began in India. Around 2000 BC, the symbol "0" was used in Vedas, the oldest Brahmin literature in ancient India. At that time, 0 indicated that there was no (empty) position in Brahmanism in India. Around the beginning of the 6th century, India began to use the notation of fate. At the beginning of the 7th century, the great Indian mathematician Graf Magpuda first explained that 0 of 0 is 0, and any number can be obtained by adding or subtracting 0. Unfortunately, he didn't mention the example of calculating with the symbol of life position. Some scholars believe that the concept of "0" was born and developed in India because of the philosophical thought of "absolutely nothing" in Indian Buddhism. In 733 AD, an Indian astronomer introduced this notation to Arabs during his visit to Baghdad, the capital of Iraq, because it was simple and easy to use, and soon replaced the previous Arabic numerals. This symbol was later introduced into western Europe.