---
tag: 09RJ859N7A
kind: concept
name: Partial sum
msc: [40A05]
sources:
  - url: https://en.wikipedia.org/wiki/Series_(mathematics)
    locator: Partial sum of a series
---

## Summary

A partial sum of a series is the sum of its first finitely many terms. The sequence of partial sums decides whether the series converges. The node [[partial sum|0NB643K60Q]] gives the precise definition.