27 lines
778 B
Markdown
27 lines
778 B
Markdown
---
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title: Sum of powers
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tags: math
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expertise: intermediate
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author: maciv
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firstSeen: 2020-10-04T14:21:41+03:00
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lastUpdated: 2020-11-02T19:28:35+02:00
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---
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Returns the sum of the powers of all the numbers from `start` to `end` (both inclusive).
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- Use `range()` in combination with a list comprehension to create a list of elements in the desired range raised to the given `power`.
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- Use `sum()` to add the values together.
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- Omit the second argument, `power`, to use a default power of `2`.
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- Omit the third argument, `start`, to use a default starting value of `1`.
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```py
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def sum_of_powers(end, power = 2, start = 1):
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return sum([(i) ** power for i in range(start, end + 1)])
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```
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```py
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sum_of_powers(10) # 385
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sum_of_powers(10, 3) # 3025
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sum_of_powers(10, 3, 5) # 2925
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```
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