1208, India's Arabic numerals were introduced into this book, and it was written at the beginning that "nine numbers of Indians, together with the symbol 0 invented by Arabs, can write all the numbers ..." For some reasons, when the symbol 0 was first introduced to the West, it once caused confusion to Westerners, because at that time, the West thought that all numbers were countable, and the number 0 would make many formulas, so the logic could not be established (0). It was not until about 15 and 16 centuries that zero and negative numbers were gradually recognized by westerners, which made western mathematics develop rapidly.
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 indicated that India was short. Around the beginning of the 6th century, India began to use the notation of fate. Graf, a great Indian mathematician in the early 7th century? Magpuda first explained the nature of 0: any number multiplied by 0 is 0, and any number added or subtracted from 0 gets any number. 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.