什么是非负实数?
代数是数学的一个分支,它涉及对表示未知量的符号和表示已知量的常数的分析。代数的表达式由项组成,每个项可能由变量(未知值)、系数、常数以及附加到它们的数学运算组成。
下面写的文章是对实数的研究。本文简要描述了非负实数以及一些用于排除疑问的示例问题。
实数
实数是由有理数和无理数组成的一组数字。它们可以算为正数或负数。通常,实数用字母符号“R”表示。实数的一些例子是 -1/2、-5、-11、-0.5 等。实数、整数、有理数以及无理数的集合可以用 p/q 的形式表示.
什么是非负实数?
回答:
The set of positive real numbers which are greater than 0 (zero) are the non-negative real numbers.
The statement can be written as,
R ≥ 0
Which means the real numbers are either positive or zero. The set will include numbers like {0,1, 2, 3, 4, 5,…}.
示例问题
问题1:哪些数字不包含在实数集中?
回答:
The imaginary numbers and the irrational numbers which can not be expressed in the form of p/q are not included in the set of real numbers.
问题2:非负实数中是否包含零?
回答:
Yes, all the positive numbers along with zero are included in non-negative real numbers.
问题3:什么是虚数?
回答:
The complex numbers which are represented by letters and do not have a constant value are imaginary numbers. They are basically unreal numbers with no constant numerical value.