Complex number is actually a general term for real number and imaginary number. In primary school mathematics, the plural refers to the even number, which corresponds to the singular number. Complex numbers are usually represented by the letter z, that is, z=a+bi(a, b∈R). This representation is called algebraic form of complex number, where A is the real part of complex number and B is the imaginary part of complex number. Mathematics is a subject that studies concepts such as quantity, structure, change, space and information.

Introduction:

Mathematics is a universal means for human beings to strictly describe the abstract structure and mode of things, and can be applied to any problem in the real world. All mathematical objects are artificially defined in essence. In this sense, mathematics belongs to formal science, not natural science. Different mathematicians and philosophers have a series of views on the exact scope and definition of mathematics.

Mathematics plays an irreplaceable role in the development of human history and social life, and it is also an indispensable basic tool for studying and studying modern science and technology.