LaTeX Asterisk (*) - Complete Guide

The asterisk (*) is used for footnotes, convolution operations, and general markers.

Symbol Preview

*

Asterisk

LaTeX Code

No package required

Recommended
*

Asterisk symbol

No package required

Recommended
\ast

Math mode asterisk

What is the LaTeX Asterisk?

The asterisk serves multiple purposes: as a footnote marker, to denote convolution in signal processing, or as a general annotation marker.

How to Use Asterisk in LaTeX

Method 1: Using *

✅No package required

Asterisk symbol

Example: Using *

latex
\documentclass{article}

\begin{document}

% Using the Asterisk
Text with *

\end{document}

Method 2: Using \ast

✅No package required

Math mode asterisk

Example: Using \ast

latex
\documentclass{article}

\begin{document}

% Using the Asterisk
Text with \ast

\end{document}

Common Use Cases

The Asterisk symbol is commonly used in the following contexts:

Footnote

Primary footnote marker.

Code

$x^*$

Output

x*

Convolution

Convolution operation in signal processing.

Code

$(f * g)(t)$

Output

(f * g)(t)

Complete Examples

Asterisk Usage

Asterisk for convolution

latex
\documentclass{article}
\begin{document}

The convolution is defined as $(f * g)(t) = \int f(\tau) g(t - \tau) d\tau$.

\end{document}

Frequently Asked Questions about Asterisk (*)

Which LaTeX code should I use for Asterisk?

For the Asterisk symbol (*), we recommend using the method marked as "Recommended" above. However, the best method depends on your specific needs:

  • *: Asterisk symbol
  • \ast: Math mode asterisk

Where can I use the Asterisk symbol?

The Asterisk symbol (*) is typically used:

  • In mathematical equations (math mode)
  • In regular text (if supported)
  • In various LaTeX environments

Can I use the Asterisk symbol in display mode?

Yes, the Asterisk symbol (*) works in display mode (between $$ $$). This allows you to render the symbol on its own line with better visibility.

🔗 Related Symbols You May Need

†

Dagger

\dagger
‡

Double Dagger

\ddagger
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