*This article aims to show you a simple way to create an **infinity symbol in LaTeX**.*

The infinity symbol can be seen most of the time in mathematics, like in limits or integrals involving boundaries. Thatâ€™s why today you will learn how to insert the latex infinity symbol in LaTeX.

**LaTeX infinity symbol**

Just as many other symbols, the infinity symbol is built-in to LaTeX, that means you donâ€™t need a package to write it in your document. The command is simple \**infty**, the math mode must be enabled (using the $ to open and close it) and it does not take any value as argument. For example

```
\begin{document}
The $\infty$ is beautiful
\end{document}
```

**Infinity symbols in mathematics**

The infinity symbol can be used in many math topics, you will see some typical examples including, intervals, limits, integrals, and summations. For example

```
\begin{document}
Dom $\in \left(-\infty , 0 \right]$ %interval with infinity
%---------------------------
$$\lim_{x\to\infty} = \frac{x^2+x-1}{x-8}$$ %limit with infinity
%---------------------------
$$\int_{-\infty}^{\infty}e^{-x^2}dx$$ %integral with infinity
%---------------------------
$$\sum_{n=0}^{\infty}\frac{(-1)^n}{(2n+1)!}\,x^{2n+1}$$ %summation with infinity, the sine series
\end{document}
```

As you can see it is straightforward and simple, maybe there could be other packages that include the symbol, but donâ€™t complicate your LaTeX file if you donâ€™t need to.

Now you have the knowledge of how to insert the infinity symbol or sign in LaTeX and as a plus some direct application of the infinity in mathematics.

I hope this post was helpful. If you have any questions leave them in the comments.Â

And, as always, keep writing in LaTeX

**Further Reading**

**LaTex Tutorial** **on Symbols**

- How To Create A Cross Product Symbol In LaTeX
- How to create a hat symbol in LaTeX?
- How to create a prime symbol in LaTeX?
- How to create an absolute value symbol in LaTeX?
- How to create an approximate symbol in LaTeX?
- How to create an intersection symbol in LaTeX?
- How to create the empty set symbol in LaTeX?
- How to write a degree symbol in LaTeX?
- How to write a dot product in LaTeX?
- How to Write a Greater Than Symbol in LaTeX?
- How to write a norm symbol in LaTeX?
- How to write A Plus-Minus Symbol in LaTeX
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- How to write the square root symbol in LaTeX?
- How To Write The Symbol For A Subset In LaTeX?
- How to write the symbol for therefore in LaTeX?
- How to write with the mathbb in LaTeX?