Many mathematical expressions require a product symbol to complete the equation. However, many beginners don’t know how to create a product symbol and end up getting errors in LaTeX. So, in this tutorial, we will explain simple ways to write and use a product symbol in LaTeX.

**How to Write and Use a Product Symbol in LaTeX?**

For the product symbol, you can amsmath \usepackage and \prod code, and here is the example source code:

\usepackage{amsmath}

\begin{document}

$\prod$

\end{document}

**Output**

Similarly, you use \Pi code rather than \prod to write the product symbol in LaTeX:

\usepackage{amsmath}

\begin{document}

$\Pi$

\end{document}

**Output**

Now, let’s take an example in which we create a detailed mathematical expression that includes a product symbol:

\usepackage{amsmath}

\begin{document}

The following is an inline formula : $\prod_{i=1}^{\infty} a_{i}$, \\

moreover, now this inline formula in the display style is same: ${\displaystyle \prod_{i=1}^{\infty} a_{i}}$, \\

as well as, now this inline formula with limits is also the same: $\prod\limits_{i=1}^{\infty} a_{i}$

Now, same formula in the following equation:

\begin{equation*}

\prod_{i=1}^{\infty} a_{i}

\end{equation*}

or in an equation, however, in a fraction :

\begin{equation*}

\frac{\prod_{i=1}^{\infty} a_{i}}{2}

\end{equation*}

or in an equation, however, in a fraction, although with a forced display style :

\begin{equation*}

\frac{\displaystyle \prod_{i=1}^{\infty} a_{i}}{2}

\end{equation*}

\end{document}

**Output**

Whenever you try to get anything under the product character, it will put it adjacent. The suggested code for doing this is; “\prod_{n=1}”.

**Conclusion**

This is how you can quickly write and use a product symbol in LaTeX. We have used different examples and source codes so that you can easily understand the basics of the product symbol.