Lexical analysis:

complicated

English [k? mpleks]？ Beauty [k? m'pleks]

Complex; Synthetic; multiple

Complex; Complex; Comprehensive symptoms; Cardiac complex

This is a complicated problem.

This is a complicated problem.

Complex idea, complex idea?

A machine with a complicated structure.

Extended data

Graphical representation of complex numbers—

The German mathematician Forrest Gump (1777- 1855) published the graphic representation of complex numbers in 1806, that is, all real numbers can be represented by a number axis, and similarly, complex numbers can also be represented by points on a plane. In the rectangular coordinate system, take the point A corresponding to the real number A on the horizontal axis and the point B corresponding to the real number B on the vertical axis, and draw a straight line parallel to the coordinate axis through these two points, and their intersection point C represents a complex number.

In this way, the plane whose points correspond to complex numbers is called "complex plane", and later it is also called "Forrest plane". In 183 1, Gauss expressed complex numbers with real arrays, and established some operations of complex numbers, making some operations of complex numbers "algebraic" like real numbers. He first put forward the term "complex number" in 1832, and also integrated two different representations of the same point on the plane-rectangular coordinate method and polar coordinate method.