There are a few notations for intervals in maths; <a href="https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Interval_%28mathematics%29" rel="nofollow">https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Interval_%28mathematics%29</a><p>There are arithmetic operators for intervals and IEEE standards! <a href="https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Interval_arithmetic#Elementary_functions" rel="nofollow">https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Interval_arithmetic#Elementary...</a>