How to represent complex numbers in python

A complex number is composed of a real number and an imaginary number, expressed as: x yj A complex number is a pair of ordered floating point numbers (x, y), where x is the real part and y is the imaginary part.

Concepts about plural numbers in Python language: Recommended learning: Python video tutorial)

1. Imaginary numbers cannot exist alone. They always form a complex number together with a real part with a value of 0.0

2. A complex number consists of a real part and an imaginary part

3. Represents a complex number Syntax: real imagej

4. The real part and the imaginary part are both floating point numbers

5. The imaginary part must have the suffix j or J

#coding=utf8

aa=123-12j
print aa.real  # output 实数部分 123.0  
print aa.imag  # output虚数部分 -12.0

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