## Question

Asked By – I159

Are complex numbers a supported data-type in python? If so, how do you use them?

**Now we will see solution for issue: Complex numbers in python **

## Answer

In python, you can put ‘j’ or ‘J’ after a number to make it imaginary, so you can write complex literals easily:

```
>>> 1j
1j
>>> 1J
1j
>>> 1j * 1j
(-1+0j)
```

The ‘j’ suffix comes from electrical engineering, where the variable ‘i’ is usually used for current. (Reasoning found here.)

The type of a complex number is `complex`

, and you can use the type as a constructor if you prefer:

```
>>> complex(2,3)
(2+3j)
```

A complex number has some built-in accessors:

```
>>> z = 2+3j
>>> z.real
2.0
>>> z.imag
3.0
>>> z.conjugate()
(2-3j)
```

Several built-in functions support complex numbers:

```
>>> abs(3 + 4j)
5.0
>>> pow(3 + 4j, 2)
(-7+24j)
```

The standard module `cmath`

has more functions that handle complex numbers:

```
>>> import cmath
>>> cmath.sin(2 + 3j)
(9.15449914691143-4.168906959966565j)
```

This question is answered By – rob mayoff

**This answer is collected from stackoverflow and reviewed by FixPython community admins, is licensed under cc by-sa 2.5 , cc by-sa 3.0 and cc by-sa 4.0 **