How to Write Epsilon Symbol (ε) in LaTeX

In LaTeX, you can write the epsilon symbol using the \epsilon command for the lowercase epsilon (ε) and the \Epsilon command for the uppercase epsilon (Ε).

The following examples show how to write the epsilon symbol in LaTeX.

How to Write the Epsilon Symbol in Text

We can use the \epsilon command to write the lowercase epsilon symbol in LaTeX document for text.

Suppose we want to write the epsilon symbol in the text.

We can use the following LaTeX code to do so:

\documentclass{article}
\begin{document}

This is an example of using the epsilon symbol \(\epsilon\) in a sentence.

\end{document}

Output: 👇️

This is an example of using the epsilon symbol ε in a sentence.

In this example, we use the \epsilon command to display the lowercase epsilon symbol in the text.

How to Write the Epsilon Symbol in Mathematical Expressions

For mathematical expressions, we can use the \epsilon command to ensure proper formatting.

Suppose we would like to write mathematical expressions that contain the epsilon symbol.

We can use the following LaTeX code to do so:

\documentclass{article}
\begin{document}

An inline mathematical expression: \( \alpha + \beta = \epsilon \).

A displayed mathematical expression:
\[
\alpha^2 + \beta^2 = \epsilon^2
\]

\end{document}

Output: 👇️

In this example, we use the \epsilon command to denote the epsilon symbol in both inline and displayed mathematical expressions.

Conclusion

We can use the \epsilon command for both text and mathematical expressions. This ensures that the epsilon symbol is properly formatted and displayed in LaTeX document.