elementaryfunction

noun
UK /ˌelɪˈmentri ˈfʌŋkʃn/
US /ˌelɪˈmentəri ˈfʌŋkʃn/

A basic math rule that takes a number and gives you a new number.

Adding two numbers is an elementary function you learn early in school.


OTHER MEANINGS

2. A function built from basic operations like adding, multiplying, and powers.

The teacher showed that x squared is an elementary function.

3. A simple job or role in a system or organization.

Checking tickets is an elementary function at the train station.

4. A basic purpose that something is designed to do.

Storing water is an elementary function of a bottle.