1, Newton: the foundation of calculus. 2. Euler: Introduction to Infinitesimal Analysis is his epoch-making masterpiece. At that time, mathematicians called him "the embodiment of analysis". In addition, Euler also created many mathematical symbols that are still used today, such as π, that is, sin, cos, tg, δ X, σ, f(x) and so on. Goldbach conjecture was first put forward in his correspondence with Goldbach. Euler also completed the precise theory of the moon's motion around the earth for the first time, founded the mechanics disciplines such as analytical mechanics and rigid body mechanics, and deepened the design and calculation theory of telescopes and microscopes. 4. Galois: The concept of "group" was introduced for the first time. (I sent it to Cauchy, a great mathematician, for review. Unfortunately, Cauchy looked down on the article and didn't read it carefully, which delayed the theory for 50 years. )/kloc-when I was 0/8 years old, I sent it again, this time to the great mathematician Fourier, but unfortunately Fourier died of illness and could not review it. /kloc-when I was 0/9 years old, I sent it for the third time, this time to Poisson, a great mathematician, but Poisson's final comment was "I don't understand it at all". These mistakes made the most important branch of mathematics "group theory" 50 years late. 5. Henry Poincare, Poincare published about 500 scientific papers and 30 scientific works in his life, covering almost all fields of mathematics and many important fields such as theoretical physics and astrophysics. 6. Hilbert Hilbert's research involves many fields of modern mathematics, such as invariant theory, algebraic number theory, geometric basis, axiomatization of integral equations and physics, mathematical basis and mathematical logic.