LaTeX Infinity (∞) - Complete Guide
The infinity symbol (∞) represents an unbounded or limitless quantity.
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Infinity
LaTeX Code
No package required
\inftyInfinity symbol
What is the LaTeX Infinity?
The infinity symbol (∞) is used in calculus, limits, and series to represent values without bound. It is one of the most important symbols in advanced mathematics.
How to Use Infinity in LaTeX
Method 1: Using \infty
✅No package required
Infinity symbol
Example: Using \infty
\documentclass{article}
\begin{document}
% Using the Infinity
Text with \infty
\end{document}Common Use Cases
The Infinity symbol is commonly used in the following contexts:
Limits
Taking limits as values approach infinity.
Code
$\lim_{x \to \infty} f(x)$Output
lim(x→∞) f(x)
Infinite Series
Sum of infinite series.
Code
$\sum_{n=1}^{\infty} \frac{1}{n^2}$Output
Σ(n=1 to ∞) 1/n²
Complete Examples
Limit to Infinity
Limit to infinity
\documentclass{article}
\begin{document}
As $n \to \infty$, the sequence approaches a limit:
$$\lim_{n \to \infty} \frac{1}{n} = 0$$
\end{document}Frequently Asked Questions
Which method should I use?
We recommend using the method marked as "Recommended" above. However, the best method depends on your specific needs:
- \infty: Infinity symbol
Where do I use this symbol?
This symbol can be used:
- In mathematical equations (math mode)
- In regular text (if using text mode)
- In various document environments
Can I use this in display mode?
Yes, symbols that work in math mode (between $ $) also work in display mode (between $$ $$). This allows you to display the symbol on its own line with larger formatting.
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