The identity element of an additive group , usually denoted 0. In the additive group of vectors, the additive identity is the zero vector , in the additive group of polynomials it is the zero polynomial , in the additive group of matrices it is the zero matrix.

# Additive Identity

## See also

Additive Group, Additive Inverse, Multiplicative Identity, Zero, Zero Matrix, Zero Polynomial, Zero Vector
*This entry contributed by Margherita
Barile*

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## Cite this as:

Barile, Margherita. "Additive Identity." From *MathWorld*--A Wolfram Web Resource, created by Eric
W. Weisstein. https://mathworld.wolfram.com/AdditiveIdentity.html