1, Pythagoras: a famous mathematician in ancient Greece. When he discovered the Pythagorean Theorem, he was ecstatic. He slaughtered a hundred cows and offered sacrifices to the goddess Miao (the mythical goddess in charge of literature, art and science) to thank God for his revelation. In fact, Babylon and China knew this theorem for a long time, but the earliest proof was due to him, but it has been lost. He thinks that the ball is the most perfect solid and the circle is the most perfect plane figure.
2. Mozi: According to legend, he was born in the Song Dynasty and later lived in Lu, and was the founder of Mohism. In Mozi, I try to discuss the problems of optics, mechanics, logic and geometry theoretically.
3. Archimedes: an outstanding mathematician and physicist in ancient Greece. His father is an astronomer. It occupies a high position in mathematics. In geometry, Archimedes axiom and some precious geometric theorems are put forward, among which the most proud is that "there is an inscribed sphere in an equilateral cylinder, so the total area and volume of the cylinder are 3/2 of the surface area and volume of the sphere respectively". Archimedes hopes to engrave this number on his tombstone in the future.
4. Liu Hui was an outstanding mathematician in Wei and Jin Dynasties. Author of "Nine Chapters Arithmetic", he was the first mathematician in China who advocated using logical reasoning to demonstrate mathematical propositions. In this book, all propositions have been proved or explained. His secant technique obtained a more accurate pi, which was later called "emblem rate". Although it is later than Archimedes, it occupies a very important position in the history of Chinese mathematics.
5. Zu Chongzhi was an outstanding mathematician in the Southern and Northern Dynasties. Zu Chongzhi has made great achievements in mathematics. For pi, he carefully studied and calculated: 3. 14 15926.