Equations are the most important part of the scientific document. Writing equations and mathematical expressions are easy in Latex. This tutorial will guide you about writing mathematical equations and expressions.

## Equation mode

There are two mode for writing equation in Latex.

- Inline mode
- Displayed mode

The first method print the equation in the same line after the text. While in the displayed mode the equations are printed in the next line with center-aligned.

## Example of writing equations

Both can be seen in the following example code.

\documentclass[11pt, oneside]{article} \begin{document} The basic formula in mathematics are $(a+b)^2 = a^2+b^2+2ab$. This is the example of inline mode. However, the equation in displayed mode will be \begin{equation} (a+b)^2 = a^2+b^2+2ab \end{equation} \end{document}

The output PDF will be look like this.

The dollar sign “$” is used to write the equation within the text (inline mode). While the ** \begin{equation}** and

*are used for displayed mode.*

**\end{equation}**Last Updated on