﻿ Python Math: Calculate the difference between the squared sum and the sum of the squared of first n natural numbers - w3resource

# Python Math: Calculate the difference between the squared sum and the sum of squared of first n natural numbers

## Python Math: Exercise-11 with Solution

Write a Python program to calculate the difference between the squared sum of the first n natural numbers and the sum of squared first n natural numbers.(default value of number=2).

Sample Solution:-

Python Code:

``````def sum_difference(n=2):
sum_of_squares = 0
square_of_sum = 0
for num in range(1, n+1):
sum_of_squares += num * num
square_of_sum += num

square_of_sum = square_of_sum ** 2

return square_of_sum - sum_of_squares

print(sum_difference(12))
```
```

Sample Output:

```5434
```

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## Python: Tips of the Day

Combining Lists Using Zip:

• Takes multiple collections and returns a new collection.
• The new collection contains items where each item contains one element from each input collection.
• It allows us to transverse multiple collections at the same time.
```name = 'abcdef'
suffix = [1,2,3,4,5,6]
zip(name, suffix)
--> returns (a,1),(b,2),(c,3),(d,4),(e,5),(f,6)
```

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