/kloc-there are not many foreign mathematical achievements in the 0/3 century, mainly under the dark religious oppression in this period.

On the contrary, China was the heyday of mathematics in the Song and Yuan Dynasties.

The main contribution of Qin's Shu Shu Jiu Zhang (1247) is to derive a number from a large number.

Ye Li's Mirror Around the Sea (1248) and A Smoke Break (1259).

Yang Hui's algorithm (126 1), daily algorithm (1262) and Yang Hui's algorithm (1274~ 1275).

Zhu Shijie's Arithmetic Enlightenment (1299) and Philip Burkart's Meeting (1303).

Many mathematical achievements in this period reached the peak of ancient mathematics in China. Such as numerical solution of higher-order equation, group solution of first-order congruence, higher-order interpolation and summation of higher-order arithmetic progression. During this period, abacus also appeared.

During this period, mathematical translation in foreign countries, mainly Arabia, basically ended, preparing for the Western Renaissance.

Italian mathematician Fibonacci's abacus book (1228) systematically introduced Indian Arabic numerals to the west.

Universities in Europe began to appear, but this is not a university in today's sense, it is controlled by the church.