| Symbol | Plus-minus |
|---|---|
| Type of symbol | Mathematics |
| Package (requirement) | No |
| Argument | No |
| Latex command | \pm |
| Example | a \pm b → a ± b |
Mathematically, use of plus-minus symbols is much higher. And \pm command is present to denote the plus-minus symbol in latex. You don’t have to take any external package for this.
\documentclass{article}
\begin{document}
\[ a \pm b \]
\[ x=\frac{-b\pm\sqrt{b^2-4ac}}{2a} \]
\[ 2ax_1=-b\pm\sqrt{b^2-4ac} \]
\end{document}
