# How to Write a Backslash in LaTeX

In LaTeX, the backslash `\`

is a special character used to introduce commands. To display a backslash as a character in document, you will need to escape it by using a double backslash [`\\`

].

The following examples show how to write a backslash in LaTeX.

## How to Write a Backslash in Text

We can use a double backslash to display a backslash in LaTeX document for text.

### Example: Backslash in Text

Suppose we want to write a backslash in the text.

We can use the following LaTeX code to do so:

```
\documentclass{article}
\begin{document}
This is an example of using a backslash \\ in a sentence.
\end{document}
```

Output: 👇️

```
This is an example of using a backslash \ in a sentence.
```

In this example, we use double backslash [`\\`

] to display a single backslash in the text.

## How to Write a Backslash in Mathematical Expressions

For mathematical expressions, to display backslash (), we need to escape it with another backslash: \backslash.

### Example: Backslash in Mathematical Expressions

Suppose we would like to write mathematical expressions that contain a backslash.

We can use the following LaTeX code to do so:

```
\documentclass{article}
\begin{document}
An inline mathematical expression: \( a \backslash b \).
A displayed mathematical expression:
\[
a \backslash b
\]
\end{document}
```

Output: 👇️

In this example, we use the `\backslash`

to display a single backslash in both inline and displayed mathematical expressions.

## Conclusion

We can use the standard keyboard character `\`

for both text and mathematical expressions to display backslash. For mathematical expressions, you can use `\backslash`

to properly render a backslash.