A symbol representing infinity in mathematical expressions, similar to \infty but with a more angular, stylized appearance.
Examples
Representing infinity in a limit
\lim_{x \to \infin} \frac{1}{x} = 0
Infinite interval notation
(0,\infin) = \{x \in \mathbb{R} : x > 0\}
Infinite series summation
\sum_{n=1}^{\infin} \frac{1}{n^2} = \frac{\pi^2}{6}