Difference between revisions of "Negative number"
m |
|||
| Line 1: | Line 1: | ||
| − | A [[real number]] (and thus [[integer]], [[rational number]] or [[irrational number]]) is '''negative''' if it is less than zero. | + | A [[real number]] (and thus [[integer]], [[rational number]] or [[irrational number]]) is '''negative''' if it is less than [[zero (constant) | zero]]. |
| − | The negative or ''additive inverse'' of a number is the number which, when added to that number, gives zero. The negative of a negative real number is a [[positive number]]. The negative of zero is zero. | + | '''The negative''' (or ''additive inverse'') of a number is the number which, when added to that number, gives zero. Note that this definition extends beyond the real numbers to include the [[complex number]]s (and, more generally, to any additive [[group]]. The negative of a negative real number is a [[positive number]]. The negative of zero is zero. |
| + | |||
| + | ==See Also== | ||
| + | * [[Inverse with respect to an operation]] | ||
| + | |||
| + | |||
| + | {{stub}} | ||
Revision as of 09:57, 15 October 2006
A real number (and thus integer, rational number or irrational number) is negative if it is less than zero.
The negative (or additive inverse) of a number is the number which, when added to that number, gives zero. Note that this definition extends beyond the real numbers to include the complex numbers (and, more generally, to any additive group. The negative of a negative real number is a positive number. The negative of zero is zero.
See Also
This article is a stub. Help us out by expanding it.
