Decimal Expansion/Examples/1.23999...

Example of Decimal Expansion

 * $1 \cdotp 23999 \ldots$

is not a decimal expansion as defined on

This is because it ends in an infinite sequence of $9$s.

The number $1 \cdotp 23999 \ldots$ is equal to, and is best expressed as, $1 cdotp 24$.