\infty
The symbol \infty represents the concept of infinity, which is used in mathematics to denote a quantity that is larger than any finite number. It is often used in calculus, set theory, and other mathematical contexts to describe unbounded limits or sizes.
Limit of a function as x approaches infinity
\lim_{x \to \infty} f(x) = L
Infinite series summation
\sum_{n=1}^{\infty} \frac{1}{n^2} = \frac{\pi^2}{6}
Improper integral over an infinite interval
\int_{0}^{\infty} e^{-x} \, dx = 1