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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:

Flowchart: Get the sum of the powers of all the numbers from start to end (both inclusive).

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Python: Tips of the Day

Lambdas for Sorting:

>>> students = [{'name': 'John', 'score': 98}, {'name': 'Mike', 'score': 94}, {'name': 'Jennifer', 'score': 99}]
>>> sorted(students, key=lambda x: x['score'])
[{'name': 'Mike', 'score': 94}, {'name': 'John', 'score': 98}, {'name': 'Jennifer', 'score': 99}]