﻿ Python Math: Get the sum of the powers of all the numbers from start to end (both inclusive) - w3resource

# Python Math: Get the sum of the powers of all the numbers from start to end (both inclusive)

## Python Math: Exercise-85 with Solution

Write a Python program to get the sum of the powers of all the numbers from start to end (both inclusive).

• Use range() in combination with a list comprehension to create a list of elements in the desired range raised to the given power.
• Use sum() to add the values together.
• Omit the second argument, power, to use a default power of 2.
• Omit the third argument, start, to use a default starting value of 1.

Sample Solution:

Python Code:

``````def sum_of_powers(end, power = 2, start = 1):
return sum([(i) ** power for i in range(start, end + 1)])

print(sum_of_powers(12))
print(sum_of_powers(12, 3))
print(sum_of_powers(12, 5, 7))
```
```

Sample Output:

```650
6084
618507
```

Flowchart:

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## Python: Tips of the Day

Getting rid of unwanted characters:

You can get rid of whitespaces or any specific character using strip methods in Python. You can use either plain strip for both sides, lstrip for the left side and rstrip for the right side only.

```str="+++Welcome python+++"
str.strip()

print(str)```

Output:

`+++Welcome python+++`