数数和整数有什么区别?
数系包括不同类型的数,例如质数、奇数、偶数、有理数、整数等。这些数可以相应地以数字和文字的形式表示。例如,40、65等以数字形式表示的数字,也可以写成40、65。
A Number system or numeral system is defined as an elementary system to express numbers and figures. It is the unique way of representing of numbers in arithmetic and algebraic structure.
数字用于各种算术值,适用于执行各种算术运算,如加法、减法、乘法等,这些运算适用于日常生活中的计算目的。数字的值由数字、它在数字中的位置值以及数字系统的基数决定。数字通常也称为数字,是用于计数、测量、标记和测量基本量的数学值。
Numbers are the mathematical values or figures used for the purpose of measuring or calculating quantities. It is represented by numerals as 2, 4, 7, etc. Some examples of numbers are integers, whole numbers, natural numbers, rational and irrational numbers, etc.
数字类型
有不同类型的数字按数字系统分类。类型描述如下,
- 自然数:自然数是从 1 到无穷大的正数。自然数集由'N'表示。这是我们通常用于计数的数字。自然数集可以表示为 N = 1, 2, 3, 4, 5, 6, 7,…
- 整数:整数是包括零在内的正数,从 0 计数到无穷大。整数不包括分数或小数。整数集由“W”表示。该集合可以表示为 W = 0, 1, 2, 3, 4, 5,…
- 整数:整数是一组数字,包括所有正数、零以及从负无穷到正无穷的所有负数。该集合不包括分数和小数。整数集由'Z'表示。整数集可以表示为 Z = .....,-5, -4, -3, -2, -1, 0, 1, 2, 3, 4, 5,...
- 十进制数:任何由小数点组成的数值都是十进制数。可表示为 2.5、0.567 等。
- 实数:实数是不包含任何虚值的集合数。它包括所有正整数、负整数、分数和十进制值。它通常用“R”表示。
- 复数:复数是一组包含虚数的数字。它可以表示为 a+bi,其中“a”和“b”是实数。它用“C”表示。
- 有理数:有理数是可以表示为两个整数之比的数。它包括所有整数,可以用分数或小数表示。它用“Q”表示。
- 无理数:无理数是不能用分数或整数比表示的数字。它可以写成小数,小数点后有无穷无尽的不重复数字。它用“P”表示。
数数和整数有什么区别?
整数
由包括 0 在内的所有正整数组成的数系子集定义为整数。整数从零计数到正无穷大。这些数字主要用于计数、基本量的测量和日常计算。
Whole numbers are the only constituents of natural numbers including zero. The subset is given by {0,1,2,3,4,5,……….}, the set does not include fractions, decimals, and negative integers.
整数示例
正整数也称为计数,包括零是整数的一部分,例如 0、1、2、3、4、5 等,不包括负整数、分数和小数。
12, 120, 1200, etc all are examples of whole numbers.
332 is a whole number as it’s a positive integer
-214 is not a whole number as it’s not a positive integer
2.23 is not a whole number as it’s a decimal value
3/15 is not a whole number as it’s a fraction
数数
数数不过是自然数。让我们更详细地了解自然数,
Counting numbers or Natural numbers are the positive numbers that count from 1 to infinity. The set of natural numbers is represented by ‘N’. It is the numbers we generally use for counting. The set of natural numbers can be represented as N = 1, 2, 3, 4, 5, 6, 7,…
自然数的另一个名称是数数,因为人们可以用手数数自然数。自然数构成数字系统的一部分,从 1 开始就是正整数。这些数字显示在数轴的右侧。
自然数的例子是 1, 2, 3, 4, 5,… N。零和负整数不是自然数的一部分。
可能的最小自然数是 1,最大自然数可以是任何无限正整数值。分数、十进制值、复数等不是自然数。
我们用来计算任何东西的一组数字被定义为计数。所有自然数都是计数数。这些数字总是积极的。
Examples are 1, 2, 3, 4, 5, … etc. and it doesn’t include zero .
33 is a natural number as it’s a positive integer
-24 is not a natural number as it’s not a positive integer
2.3 is not a natural number as it’s a decimal value.
3/5 is not a natural number as it’s a fraction
数数和整数的区别: Counting numbers Whole numbersThe set of counting numbers is {1,2,…N} The set of Whole numbers is {0,1,2,…N} The smallest counting number we have is 1 as it does not include zero The smallest whole number is 0 All non zero positive integers are a part of counting numbers All positive integers are a part of whole numbers A counting number is a subset of the Whole number The whole number is a superset of natural number Counting numbers are represented by the letter N Whole numbers are represented by the letter W
示例问题
问题1:数字200、399、457是整数吗?
回答:
Yes, the numbers 200, 399, 457 are the whole numbers.
问题2:从下面识别哪些是计数?
6, 0, 8.008, 5/7, 4
回答:
The set of numbers that we used to count anything is defined as counting numbers. All-natural numbers are counting numbers. And these numbers are always positive. and counting number doesn’t include fraction and decimals and doesnot include zero
Here 6, 4 are the counting numbers.
问题3:计数和整数是什么?
6、14、0、8.008、5/7、888
回答:
A counting number is a subset of the Whole number whereas The whole number is a superset of natural number.
both counting number and whole numbers does not include fractional or decimal value so here 6, 14, 888 are the counting as well as the whole number