latex

# How to Create Subscripts in LaTeX

A subscript refers to a number, figure, or symbol written below the line. When working with scientific documents, you should expect Subscripts at some point or the other.

In this tutorial, we shall discuss using LaTex features to write subscript texts in our documents.

To write a subscript, you start by telling math to enter math mode. Use the $to enter math mode. However, if you do not need math mode, you can use $$formulae$$. To write a subscript in LaTex, use the _{subscript value} For example, consider the code below: \documentclass{article} \usepackage[utf8]{inputenc} \usepackage{amsmath} \begin{document} The chemical formulae for water is $$H_{2}O$$ \end{document } You can also use _{subscript value} For example: \documentclass{article} \usepackage[utf8]{inputenc} \usepackage{amsmath} \begin{document} The chemical formulae for water is H_2O \end{document} ## Examples Let us look at a few examples. \documentclass{article} \usepackage[utf8]{inputenc} \usepackage{amsmath} \begin{document} The following equation shows the combustion of Heptane: \[C_{7}H_{16} + O_{2} \rightarrow CO_{2}(g) + H_{2}O(g)$

\end{document}

Here is another example:

\documentclass{article}

\usepackage[utf8]{inputenc}

\usepackage{amsmath}

\begin{document}

$\sqrt{ {\frac{\sum(x_{i} - \mu)^2}{N}} }$

\end{document}

And now for a simple example:

\documentclass{article}

\usepackage[utf8]{inputenc}

\usepackage{amsmath}

\begin{document}

$\sum_{i=1} ^ {\infty$

\end{document}

Final example:

\documentclass{article}

\usepackage[utf8]{inputenc}

\usepackage{amsmath}

\begin{document}

The precipitation of Lead (II) Chloride

$Pb(NO_{3})_{2}(aq) + NaCl(aq) \rightarrow NaNO_{3}(aq) + PbCl_{2}(s)$

\end{document}

The code above displays the output below:

## Conclusion

In this tutorial, we discussed how to insert subscripts in LaTex documents.