- $\closedint a b$
- $\hointr a b$
- $\hointl a b$
- $\openint a b$
be a real interval.
The numbers $a, b \in \R$ are known as the endpoints of the interval.
$a$ is sometimes called the left hand endpoint and $b$ the right hand endpoint of the interval.
Also known as
The endpoints can also be written as end points.