Average score: 56, winning score: 69.

Euclid generally refers to Euclid (the father of ancient Greek mathematician geometry).

Euclid (Greek: ε υ κ λ ε ι δ η? , about 330 BC-275 BC), an ancient Greek mathematician, was called "the father of geometry". His most famous book, The Elements of Geometry, is the foundation of European mathematics, in which he put forward five postulates.

Euclid's Elements of Geometry is widely regarded as the most successful textbook in history. Euclid also wrote some works about perspective, conic curve, spherical geometry and number theory.

Euclid's character evaluation:

Euclid was one of the most famous and influential mathematicians in ancient Greece. Euclid's Elements of Geometry has a great influence on the future development of geometry, mathematics and science, and on the whole way of thinking of westerners.

The Elements of Geometry is the pinnacle of the development of ancient Greek mathematics. Euclid arranged the rich achievements accumulated in Greek geometry since the 7th century BC in a rigorous logical system operation, making geometry an independent and deductive science.

China's Euclid is Liu Hui. A great mathematician in Wei and Jin Dynasties and one of the founders of China's classical mathematical theory. He has made great contributions to the history of Chinese mathematics, and his masterpieces "Nine Chapters of Arithmetic Notes" and "Arithmetic on the Island" are the most precious mathematical heritages of China.