The integers (from the Latin integer, literally "untouched", hence "whole": the word entire comes from the same origin, but via French[1]) are natural numbers including 0 (0, 1, 2, 3, ...) and their negatives (0, −1, −2, −3, ...). They are numbers that can be written without a fractional or decimal component, and fall within the set {... −2, −1, 0, 1, 2, ...}. For example, 65, 7, and −756 are integers; 1.6 and 1½ are not integers. In other terms, integers are the numbers one can count with items such as apples or fingers, and their negatives, as well as 0.
More formally, the integers are the only integral domain whose positive elements are well-ordered, and in which order is preserved by addition.[citation needed] Like the natural numbers, the integers form a countably infinite set. The set of all integers is often denoted by a boldface Z (or blackboard bold , Unicode U+2124 ℤ), which stands for Zahlen (German for numbers, pronounced /ˈtsaːlən/ "tsAH-len").[2]
Integers can be thought of as points on an infinitely long number line.In algebraic number theory, these commonly understood integers, embedded in the field of rational numbers, are referred to as rational integers to distinguish them from the more broadly defined algebraic integers.
Contents |
|
Heise Newsticker, Germany
... erste Quartal 2010 vorgesehen ist und somit frueher als Nehalem-EX erscheinen koennte muesste ihn dann eigentlich recht locker abhaengen, soll es doch laut AMD 50 Prozent (bei Integer ) und 85 Prozent (bei Gleitkomma) schneller sein als Istanbul. ...
Nehalem-EX: 64 Kerne in einem Server mit Selbstheilung Golem.de
all 70 news articles
