Files
30-seconds-of-code/snippets/cumsum.md
2022-03-22 12:32:56 +02:00

25 lines
468 B
Markdown

---
title: Partial sum list
tags: list
expertise: intermediate
author: maciv
firstSeen: 2021-01-13T23:30:41+02:00
lastUpdated: 2021-01-13T23:30:41+02:00
---
Creates a list of partial sums.
- Use `itertools.accumulate()` to create the accumulated sum for each element.
- Use `list()` to convert the result into a list.
```py
from itertools import accumulate
def cumsum(lst):
return list(accumulate(lst))
```
```py
cumsum(range(0, 15, 3)) # [0, 3, 9, 18, 30]
```