Convolution (✱, ⊛) Symbol in LaTeX

Here, I will show you how to write convolution symbol in LaTeX.

It is a kind of asterisk symbol.

\documentclass{article}

\begin{document}
\textasteriskcentered

f \textasteriskcentered \,g

\end{document}

Output:

We can also use \circledast in math mode.

\documentclass{article}
\usepackage{amsmath}
\usepackage{amssymb}
\begin{document}

P$\circledast$Q

\end{document}

Output:

Also read: All types of Asterisk (*) symbol in LaTeX