Symbols:Arithmetic and Algebra/Plus or Minus
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Plus or Minus
- $\pm$
$a \pm b$ means $a + b$ or $a - b$, often seen when expressing the two solutions of a quadratic equation.
Its $\LaTeX$ code is \pm
.
Also see
See:
for other uses of this symbol.
Sources
- 2008: David Nelson: The Penguin Dictionary of Mathematics (4th ed.) ... (previous) ... (next): plus/minus sign
- 2021: Richard Earl and James Nicholson: The Concise Oxford Dictionary of Mathematics (6th ed.) ... (previous) ... (next): Appendix $19$: Symbols and abbreviations: Real and Complex Numbers