How to not number equations in LaTeX
In LaTeX, equations are typically numbered automatically, which can be useful for referencing them in the text. However, there may be instances where you want to display an equation without assigning a number to it. This can be particularly helpful when you are presenting a series of equations that you do not intend to reference individually. In this article, we will discuss how to not number equations in LaTeX and provide some examples to illustrate the process.
Using the “equation” environment
One of the simplest ways to not number an equation in LaTeX is by using the “equation” environment. This environment behaves similarly to the standard “equation” environment, but it does not number the equations. To use this environment, simply enclose your equation within the “equation” tags, like so:
“`latex
\begin{equation}
E = mc^2
\end{equation}
“`
This will display the equation without a number, as shown in the following output:
$$
E = mc^2
$$
Using the “onumber” command
Another method for not numbering an equation is by using the “onumber” command within the “equation” environment. This command instructs LaTeX to omit the numbering for the specific equation. To use this method, place the “onumber” command on a separate line before the equation, like this:
“`latex
onumber
E = mc^2
“`
This will also display the equation without a number:
$$
E = mc^2
$$
Using the “align” environment
If you have a series of equations that you want to display without numbering, you can use the “align” environment. This environment allows you to align equations on a common column and omits numbering for all equations within the environment. To use the “align” environment, enclose your equations within the “align” tags, like so:
“`latex
\begin{align}
E &= mc^2 \\
F &= ma
\end{align}
“`
This will display the equations without numbering:
$$
E = mc^2 \\
F = ma
$$
Conclusion
In this article, we have discussed two methods for not numbering equations in LaTeX: using the “equation” environment and the “onumber” command. These techniques can be particularly useful when you want to display a series of equations without assigning a number to each one. By following the examples provided, you can easily incorporate these methods into your LaTeX documents.
