LaTeX Maps To (↦) - Complete Guide

The maps-to symbol (↦) shows how individual elements are mapped by a function.

Symbol Preview

↦

Maps To

LaTeX Code

Method 1: Using \mapsto

No package required

Recommended

\mapsto

Element mapping

What is the LaTeX Maps To?

The maps-to symbol (↦) is used to show how specific elements are mapped under a function, typically in function definitions like f(x) ↦ x².

How to Use Maps To in LaTeX

Method 1: Using \mapsto

✅No package required

Element mapping

Example: Using \mapsto

latex

\documentclass{article}

\begin{document}

% Using the Maps To
Text with \mapsto

\end{document}

Common Use Cases

The Maps To symbol is commonly used in the following contexts:

Function Element Mapping

Showing how elements are mapped.

Code

$f: x \mapsto x^2$

Output

f: x ↦ x²

Complete Examples

Function Definition

Element mapping

latex

\documentclass{article}
\begin{document}

Define: $f: \mathbb{R} \to \mathbb{R}$, $x \mapsto 2x + 1$

\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:

\mapsto: Element mapping

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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