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# Find square root of a number using exponential operation

Hello everyone, welcome back to Programming In Python! Here we learn about a Python program that finds the square root of a given number. We find the square root of a number using exponential operations.

Here I calculate the square root by finding the power of the number with 0.5, as you all know that the square root of a number is equal to its power by half. So now I use this way to calculate the result.

One can also find the square root of a number using a built-in function called `sqrt()`, Look at my other post here which shows the same.

You can watch this video on YouTube here

#### Square Root – Code Visualization

To find the square root using exponential operation

#### Approach :

• Read the input number for which the square root is to be calculated using `input()` or`raw_input()`.
• Use exponential operation ** to that number with 0.5
• The obtained result of the above operation is the required square root.
• Print the result.

#### Program :

```num = float(input('Enter a number: '))

sqrt = num ** 0.5
print('The square root of %0.3f is %0.3f' % (num, sqrt))```

#### Output :

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