Plus minus(±) symbol in LaTeX

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.

   $$ a \pm b $$
   $$ x=\frac{-b\pm\sqrt{b^2-4ac}}{2a} $$
   $$ 2ax_1=-b\pm\sqrt{b^2-4ac} $$

Salida :

Plus minus symbol.

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