Because he has too many application abilities and proofs, it can be said that he is the supreme law of the universe. College students can't escape the torment of Euler, from Euler line of elementary geometry, euler theorem of polyhedron, Euler transformation formula of solid analytic geometry, from Euler solution of quadratic equation to Euler function in number theory, Euler equation of differential equation, Euler constant of series theory, Euler equation of gender science and Euler formula of complex variable function, all of which are his gifts to science students. By the way, he also created several new topics, topology, trajectory and analytical mechanics.

His family once suffered a fire, which destroyed most of his achievements. He even went blind in his later years. However, all this did not stop him from making more achievements in mathematics. Through mental arithmetic, he can add the term 17 in the complex convergence series to the 50th place. His most famous formula is Euler's formula, which is very simple, but it is known as the first formula in the universe and contains all mathematical truths. But this formula is difficult to understand, although many mathematicians have spent their whole lives in the past.

It connects the most important constants in mathematics, two priors, the base e of natural logarithm, and pi? Two units: imaginary unit I and natural unit 1, 0 is very common in mathematics. You can prove it in any way. You can prove it in many different ways. You can use mathematical induction or reasoning, use fractional expressions, use complex variable functions, and even use plane geometry, physics and topology to prove it.

This is why it contains all mathematical truths, including the most important operator symbol and the most important relation symbol =. But 0 and 1 are the basic elements of constructing groups, rings and fields, and they are also the basis of constructing algebra. The imaginary unit I extends the problem on the number axis to the plane, which is inseparable from the Gloria of 4 yuan number and the Hami of 8 yuan number.

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