-2

This article is about the number. For other uses, see -2 (disambiguation).

← −3 −2 −1 →
-1 0 1 2 3 4 5 6 7 8 9 → List of numbers — Integers
Cardinal	-2, negative two, minus two
Ordinal	-2nd
Arabic	-٢
Chinese numeral	負二, 負貳, 負贰, 負弍
Bengali	-২

In mathematics, -2 (negative two or minus two) is the additive inverse of 2. It is the negative integer greater than (-3) and less than (-1).

Exponentiation of -2

Exponentiation of a non-zero real number with negative two can be defined as taking the reciprocal of the square of that number. Therefore the definition can be made that $x^{-2}=1/x^2$. This definition can be extended to negative numbers.

See also

• List of numbers
• Negative number
  

References

This article "-2" is from Wikipedia. The list of its authors can be seen in its historical and/or the page Edithistory:-2. Articles copied from Draft Namespace on Wikipedia could be seen on the Draft Namespace of Wikipedia and not main one.

📰 Article(s) of the same category(ies)

• 69,105
• 1701 (number)
• 213 (number)
• 24
• List of positive integers and factors 6001 to 8000
• 2016 (number)
• Interesting number paradox

---