(a+bi)？ = a？ +3a？ bi+3ab？ Me? +b？ Me? =a？ -3ab+bi(3a？ -B? )

Module = under the radical sign (a? -3ab？ )? +(3a？ b-b？ )?

Complex modulus in mathematics. The value of the positive square root of the sum of the squares of the real and imaginary parts of a complex number is called the module of the complex number.

Complex number is actually the sum of real number and imaginary number. Simply put, a complex number consists of two parts, one is called the real part, and the other is called the imaginary part. The modulus length of a complex number actually refers to the distance between the point of a negative number and the origin on the complex plane.

Algorithm:

|z 1 z2| = |z 1| |z2|

┃|z 1|-|z2|┃≤|z 1+z2|≤|z 1|+|z2|

| z 1-z2 | is the formula of the distance between two points on the complex plane, from which the equations of lines, circles, hyperbolas, ellipses and parabolas on the complex plane can be derived.