In this python program, we will learn how to find the square root of the number using the **exponent operator** and ** cmath module**. In this program, we take the input from the user and store the number in the

**num**

variable and find the square root of a number using the ******

` exponent`

operator```
# Python Program to Find the Square Root of a Number
# For All Positive Numbers This Program works Well
# To take the input from the user
num = float(input('Enter a number: '))
num_sqrt = num ** 0.5
print('The square root of %0.3f is %0.3f'%(num ,num_sqrt))
```

Enter a number: 8

The square root of 8.000 is 2.828

Enter a number: 64

The square root of 64.000 is 8.000

The above program works for all positive numbers. But for negative or complex numbers, we use the

function which belongs to the **sqrt()**** cmath** (complex math) module.

```
# Python Program to Find the square root of real or complex numbers
# Importing the complex math module
import cmath
#num = 5+6j
# To take input from the user
num = eval(input('Enter a number: '))
num_sqrt = cmath.sqrt(num)
print('The square root of {0} is {1:0.3f}+{2:0.3f}j'.format(num ,num_sqrt.real,num_sqrt.imag))
```

Enter a number: 5+6j

The square root of (5+6j) is 2.531+1.185j

Look here for more about string formatting in Python.

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