Series

Infinite sum

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:

${\displaystyle 1+{\frac {1}{2}}+{\frac {1}{4}}+{\frac {1}{8}}+{\frac {1}{16}}+{\frac {1}{32}}+{\frac {1}{64}}+{\frac {1}{128}}+\ldots }$

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