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单词 Set of integers
释义

Set of integers

原声例句
TED-Ed(视频版)

That might be a set of integers, the face of a Rubik's Cube, or anything, so long as they follow four specific rules, or axioms.

这可能是一组整数、魔方的表面或任何东西,只要它们遵循四个特定规则或公理即可。

中文百科

整数 Integer

(重定向自Set of integers)

整数,是串行{...,-3,-2,-1,0,1,2,3,...}中所有的数的统称,包括负整数、零(0)与正整数。和自然数一样,整数也是一个可数的无限集合。这个集合在数学上通常表示为粗体Z\mathbb{Z},源于德语单词Zahlen(意为“数”)的首字母。

在代数数论中,这些属于有理数的一般整数会被称为有理整数,用以和高斯整数等的概念加以区分。

英语百科

Integer 整数

(重定向自Set of integers)
Red points represent ordered pairs of natural numbers. Linked red points are equivalence classes representing the blue integers at the end of the line.
 La resta de dos números naturales no es un número natural cuando el sustraendo es mayor que el minuendo, sino que su valor es negativo: en la imagen, solo pueden sustraerse 3 plátanos, por lo que se apunta un plátano «debido» o «negativo» (en rojo).
En esta figura, el valor absoluto y el signo de un número se representan por el tamaño del círculo y su color.

An integer (from the Latin integer meaning "whole") is a number that can be written without a fractional component. For example, 21, 4, 0, and −2048 are integers, while 9.75, 5 2, and 2 are not.

The set of integers consists of zero (0), the natural numbers (1, 2, 3, …), also called whole numbers or counting numbers, and their additive inverses (the negative integers, i.e. −1, −2, −3, …). This is often denoted by a boldface Z ("Z") or blackboard bold \mathbb{Z} (Unicode U+2124 ℤ) standing for the German word Zahlen ([ˈtsaːlən], "numbers"). ℤ is a subset of the sets of rational and real numbers and, like the natural numbers, is countably infinite.

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更新时间:2025/6/17 5:02:20