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{{#invoke:Hatnote|hatnote}} {{#invoke:Infobox|infobox}} In mathematics, −1 is the additive inverse of 1, that is, the number that when added to 1 gives the additive identity element, 0. It is the negative integer greater than negative two (−2) and less than 0.

Negative one bears relation to Euler's identity since <math>e^{i \pi} = -1.\!</math>

In computer science, −1 is a common initial value for integers and is also used to show that a variable contains no useful information.

Negative one has some similar but slightly different properties to positive one.<ref>Mathematical analysis and applications

By Jayant V. Deshpande, ISBN 1-84265-189-7</ref>

−1 sections
Intro  Algebraic properties  Exponentiation to negative integers  Inductive dimension  Computer representation  References  

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{{#invoke:Hatnote|hatnote}} {{#invoke:Infobox|infobox}} In mathematics, −1 is the additive inverse of 1, that is, the number that when added to 1 gives the additive identity element, 0. It is the negative integer greater than negative two (−2) and less than 0.

Negative one bears relation to Euler's identity since <math>e^{i \pi} = -1.\!</math>

In computer science, −1 is a common initial value for integers and is also used to show that a variable contains no useful information.

Negative one has some similar but slightly different properties to positive one.<ref>Mathematical analysis and applications

By Jayant V. Deshpande, ISBN 1-84265-189-7</ref>

−1 sections
Intro  Algebraic properties  Exponentiation to negative integers  Inductive dimension  Computer representation  References  

PREVIOUS: IntroNEXT: Algebraic properties
<<>>