In Mathematics, braces ( {} )are used to symbolize
the group of mathematical terms, commonly
as the outmost measurement in a difficult expression. Braces are used in roster
notation. Wherein within the braces there are a set of elements, which are
separated by commas after each element. The set may be a set of whole numbers,
or a set of natural numbers, or even a set of integers. While in Interval
Notations, brackets and parentheses are used to indicate, whether the endpoints
are left out or contained within.
