Complex Number

A Complex number is a combination of real number and an imaginary number.

For example: 3 + 2i –> This is a complex number in which 3 is the real number and 2i is the imaginary number.

i –> is the imaginary number that is imagined as the square root of -1 i.e., √-1.

Below are few examples of complex numbers:

1. 3i
2. -4.3i
3. 57i
4. 43i/4

i is the imaginary number that depicts that it should be multiplied by √-1.

Complex number is a number which is dependent on two numbers. One number is a real number and the other number is the imaginary number.

Say for example, 2 x 3 = 6, here 6 is dependent on two numbers 2 and 3.

Likewise, complex number is also a number that is dependent on two numbers for which the value of one number is known whereas the value of the other number is unknown.

Complex Number	Real Part	Imaginary Part
6 + 5i	6	5
2	5	0
−9i	0	-9

The above table gives a clear understanding on the understanding of complex numbers.

Now, we have a basic understanding of complex numbers. Let’s get back to Python.