A complex number is a number in the form of z = a+bi(a and B are both real numbers), where A is called the real part, B is called the imaginary part, and I is called the imaginary part.

Pure complex number is a kind of complex number, that is, complex number consists of pure complex number and impure complex number. The basic form of complex number is a+bi. Where a and b are real numbers, I is imaginary unit, and its square is-1.

* * * York complex number, where two real parts are equal and imaginary parts are opposite, is * * * York complex number.

* * * York complex number, where two real parts are equal and imaginary parts are opposite, is * * * York complex number. When the imaginary part is not zero, the complex number of yoke means that the real part is equal and the imaginary part is opposite. If the Ruo Xu part is zero, its * * * yoke complex number is itself (also called * * * yoke imaginary number when the imaginary part is not equal to 0). The * * * yoke of the complex number z is marked as z (with a horizontal line on it), and sometimes it can be expressed as Z*. At the same time, the complex number Z (plus a horizontal line) is called the complex yoke of the complex number Z.