0 is an extremely important number, and its discovery is called one of the great discoveries of mankind. 0 was called Jinyuan number in ancient China (meaning extremely precious number). This data is said to have been invented by Indians in the 5th century. 1202, a businessman wrote a book about abacus. In the East, mathematics is dominated by operations (in the West, geometry and logic were dominated at that time). Due to the need of operation,

1208, India's Arabic numerals were introduced into this book, and it was written at the beginning that "nine Indian numerals, together with the symbol 0 invented by Arabs, can write all the numerals ..." For some reasons, when the symbol 0 was first introduced to the West, it once caused confusion for Westerners, because at that time, the West thought that all the numerals were positive, and the number 0 would make many formulas and logics untenable (such as division) Even considered the Devil, it was banned. It was not until about 15 and 16 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 2500 BC, the symbol "0" was used in the Vedas, the oldest document in India. At that time, 0 represents the position of no (empty) in India. At 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 Magboda first explained the nature of 0, and any number multiplied by 0 is 0. He didn't mention the example of calculating with the symbol of fate. Some scholars believe that the birth and development of the concept of 0 in India is due to the philosophical thought of "absolutely nothing" in Indian Buddhism. In 733 AD, an Indian astronomer introduced this symbol to Arabs during his visit to Baghdad, the capital of Iraq. Because of its simplicity, it quickly replaced the previous Arabic numerals. This symbol.