# Epsilon(ϵ,ε) and Backepsilon(϶) symbol in LaTeX

Symbol/Unicode Epsilon/U+03B5
Type of symbol Greek letter
Package (requirement) No
Argument No
Latex command \epsilon
Example \epsilon → ϵ

The Greek letter Epsilon is a popular symbol of Mathematica. You need to use the \epsilon command to write this symbol in latex. Below is how to use it in latex.

\documentclass{article}
\begin{document}
$$\lim_{\epsilon\rightarrow 0^+} \frac{1}{\epsilon^2 N(\epsilon)}$$
$$p < \epsilon$$
$$\lim_{\epsilon\rightarrow 0} \frac{1}{\pi x}\sin\left(\frac{x}{\epsilon}\right)$$
\end{document}

Output :

## Varepsilon symbol in LaTeX

Symbol Varepsilon
Type of symbol Mathematics
Package (requirement) No
Argument No
Latex command \varepsilon
Example \varepsilon 🠒 ε

LaTeX provides a default command to print the varepsilon symbol in a LaTeX document, which is \varepsilon. And if you want to print this symbol in upper case then use \mathcal{E} command. You don’t need any package for this.

\documentclass{article}
\begin{document}
$$\verb|\epsilon|\longrightarrow \epsilon$$
$$\verb|\varepsilon|\longrightarrow \varepsilon$$
$$\verb|\mathcal{E}|\longrightarrow \mathcal{E}$$
\end{document}

Output :

## Backepsilon symbol in LaTeX

You will need the amssymb package to print backepsilon symbols to a LaTeX document. This package provides a command called \backepsilon, which allows you to print this symbol in a document.

Symbol/Unicode Backepsilon/U+03F6
Type of symbol Mathematics
Package (requirement) amssymb
Argument No
Latex command \backepsilon
Example \backepsilon 🠒 ϶
\documentclass{article}
\usepackage{amssymb}
\begin{document}
$$\verb|\epsilon|\longrightarrow \epsilon$$
$$\verb|\backepsilon|\longrightarrow \backepsilon$$
\end{document}

Output :