# Series

A **series** is a group of several things that are all about the same thing, or are intentionally similar.

In mathematics, a **series** is the sum of a never ending mathematical sequence (a list of numbers). For example:

- <math>1 + \frac12 + \frac14 + \frac18 + \frac1{16} + \frac1{32} + \frac1{64} + \frac1{128} + \ldots </math>

The dots mean that the sum does not have a last term, but goes on to infinity.

## Other websites

- Fourier series - Easy explained Fourier series