# Definition:Ternary Notation

## Definition

Ternary notation is the technique of expressing numbers in base $3$.

That is, every number $x \in \R$ is expressed in the form:

$\displaystyle x = \sum_{j \mathop \in \Z} r_j 3^j$

where:

$\forall j \in \Z: r_j \in \set {0, 1, 2}$

## Also see

• Results about Ternary Notation can be found here.