Swiss mathematician and member of the Royal Society. Euler was a mathematical superstar in the18th century. He made great contributions in the fields of calculus, differential equations, geometry, number theory, variational methods and so on, thus establishing his position as the founder of variational methods and the pioneer of complex variable functions. Euler is the most prolific mathematician since ancient times. It is said that his precious cultural heritage was enough for all the printing presses in St. Petersburg to be busy for several years at the same time, and he was known as "Shakespeare in mathematics".

Archimedes (about 287 ~ 2 BC12 BC)

-Greek physicist and mathematician.

Archimedes' father was an astronomer and mathematician. He received a good education since he was a child and especially loved mathematics. Once, the king asked him to determine whether the crown just made by the goldsmith was pure gold or mixed silver, and warned him not to destroy the crown. At first, Archimedes was at a loss. Until one day, he soaked in a big basin full of bath water, and the volume of spilled water was equal to the volume of his body immersed in water. Then, if the crown is immersed in water, according to the rise of the water surface, the volume of the crown is equal to the volume of equal weight gold, which means that the crown is pure gold; If mixed with silver, the crown will be bigger. He jumped out of the bathtub excitedly and ran to the palace naked, shouting, "I found it!" " I found it! "He invented the principle of buoyancy. In addition, he also discovered the famous lever principle. Along with this invention, a well-known famous saying came into being: "Just give me a fulcrum and I will move the earth. "

After Archimedes' death, people compiled and published The Complete Works of Archimedes' Legacy, in order to remember the great achievements of this great scientist forever.

C.F. Gauss (1April 30, 777-1February 23, 855)

A famous German mathematician, physicist, astronomer and geologist.

Gauss, 18 years old, discovered the prime number distribution theorem and the least square method. After processing enough measurement data, new probability measurement results can be obtained. On this basis, Gaussian then focuses on the calculation of surfaces and curves, and successfully obtains Gaussian bell curve (normal distribution curve). Its function is named standard normal distribution (or Gaussian distribution), which is widely used in probability calculation. In order to know the date of Easter in any year, Gauss deduced the calculation formula of Easter date. The trajectory of Ceres calculated by Gauss sums up the application of complex numbers, and strictly proves that every N-order algebraic equation must have N real numbers or complex numbers.