Creating a Black Background Circle with Numerals in LaTeX- A Step-by-Step Guide
How to have circled number with black background in LaTeX
In LaTeX, creating a circled number with a black background can be achieved using various packages and commands. This feature is particularly useful when you want to highlight a specific section or page number in your document. In this article, we will discuss different methods to achieve this effect, including using the `fancyhdr` package, `textbf` command, and the `makeglossary` package.
One of the most popular packages for creating a circled number with a black background is the `fancyhdr` package. This package allows you to customize the header and footer of your document. To use `fancyhdr`, you first need to include the package in your LaTeX document:
“`latex
\usepackage{fancyhdr}
“`
Next, you can define the circled number with a black background using the `fancyhdr` commands. Here’s an example:
“`latex
\pagestyle{fancy}
\fancyhead[L]{\thepage}
\fancyhead[R]{\color{black}\textbf{\textcircled{\thepage}}}
“`
In this example, the `\thepage` command is used to display the current page number. The `\color{black}` command sets the text color to black, and the `\textbf` command makes the text bold. Finally, the `\textcircled` command creates a circle around the page number.
Another method to achieve a circled number with a black background is by using the `textbf` command and the `makeglossary` package. This method is particularly useful if you want to create a table of contents with circled numbers:
“`latex
\usepackage{makeglossary}
\makeglossary
ewcommand{\circled}[1]{%
ewbox\circledbox
\setbox\circledbox=\hbox{\color{black}\textbf{\textcircled{1}}}
\hbox to\wd\circledbox{\hfil\box\circledbox\hfil}%
}
\tableofcontents
ewpage
\section{Introduction}
This is an example of a circled number with a black background: \circled{1}.
“`
In this example, the `ewcommand{\circled}[1]` command creates a new command called `\circled` that takes a number as an argument. The `\color{black}` and `\textbf` commands set the text color and boldness, respectively. The `\textcircled` command creates a circle around the number.
By following these methods, you can easily create a circled number with a black background in your LaTeX document. Experiment with different packages and commands to find the one that best suits your needs.
