±

Alternative forms

 * +/-

Description
The plus sign placed above the minus sign.

Symbol

 * 1)  The plus-minus sign, indicating the tolerance or statistical margin of error of a quantity.
 * 2)  Either value as a result of addition or subtraction.
 * $$ax^2+bx+c=0\rArr x=\frac{-b\plusmn\sqrt{b^2-4ac}}{2a}$$.
 * 1) More or less
 * 2)  Advantage for white.
 * 1)  Advantage for white.