---
title: Arithmetic Series
---
## Arithmetic Series

An arithmetic series is the sum of all terms in an arithmetic sequence.

If n is the total number of terms in the sequence, a<sub>1</sub> is the value of the first term in the sequence, and a<sub>k</sub> is the value of the last term in the sequence, the sum of the sequence will be equal to:

![arithmetic series equation](https://github.com/Zoonn123/resources/blob/master/arithmeticserieshacktoberfestedit.png)