1858, the Scottish antique dealer Rand bought a batch of papyrus documents in a small town near the Nile, all of which were mathematical documents, and were called Rand papyrus. Because the author of Rand papyrus is Amos, it is also called Amos papyrus, which is now in the British Museum. Rand papyrus is a long strip, written about 1650 BC. The original mathematical text above has the nature of a practical manual, which is 544 cm long and 33 cm wide. There are many hieroglyphics written on it, and there are 85 solutions to practical math exercises. There are symbols of decimal mathematics in arithmetic, application problems of fractional calculation, etc. There are linear equations, geometric series and so on in algebra. There is an approximate value of pi (3. 1604), the area of triangle, the volume of sphere, etc. Rand papyrus was published in 1927. It is about 18 feet long and about 1 foot wide. When this cursive script arrived at the British Museum, it was not as long as before and was divided into two pieces-in fact, the middle piece had been lost. About four years after buying papyrus in Rand, American Egyptian scientist Smith bought a papyrus in Egypt on 1906-he bought it as medical papyrus, and later, Smith handed it over to the new york Historical Society; There, antique collectors found that it was a patchwork and deceptive thing, and the lost Amos papyrus was covered under those deceptive things. The association then handed the scroll to the British Museum, which made Amos's work complete.