# How do I use summation notation on a calculator?

##### 1 Answer

Aug 9, 2017

#### Answer:

It depends on the brand of calculator you have.

#### Explanation:

The only calculator series I'm familiar with is the Casio fx series, so I'll give an answer based on them.

As far as I'm aware, Casio fx- 991ES and any calculator beyond that can perform summations using sigma notation.