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  2. List of types of numbers - Wikipedia

    en.wikipedia.org/wiki/List_of_types_of_numbers

    Rational numbers (): Numbers that can be expressed as a ratio of an integer to a non-zero integer. [3] All integers are rational, but there are rational numbers that are not integers, such as −2/9. Real numbers (): Numbers that correspond to points along a line. They can be positive, negative, or zero.

  3. Integer - Wikipedia

    en.wikipedia.org/wiki/Integer

    Some authors use for non-zero integers, while others use it for non-negative integers, or for {–1,1} (the group of units of ). Additionally, Z p {\displaystyle \mathbb {Z} _{p}} is used to denote either the set of integers modulo p (i.e., the set of congruence classes of integers), or the set of p -adic integers .

  4. Real number - Wikipedia

    en.wikipedia.org/wiki/Real_number

    The non-negative real numbers can be noted but one often sees this set noted + {}. [25] In French mathematics, the positive real numbers and negative real numbers commonly include zero, and these sets are noted respectively + and . [26] In this understanding, the respective sets without zero are called strictly positive real numbers and ...

  5. Natural number - Wikipedia

    en.wikipedia.org/wiki/Natural_number

    Alternatively, since the natural numbers naturally form a subset of the integers (often denoted ), they may be referred to as the positive, or the non-negative integers, respectively. [50] To be unambiguous about whether 0 is included or not, sometimes a superscript " ∗ {\displaystyle *} " or "+" is added in the former case, and a subscript ...

  6. Number - Wikipedia

    en.wikipedia.org/wiki/Number

    The natural numbers form a subset of the integers. As there is no common standard for the inclusion or not of zero in the natural numbers, the natural numbers without zero are commonly referred to as positive integers, and the natural numbers with zero are referred to as non-negative integers.

  7. Algebraic number - Wikipedia

    en.wikipedia.org/wiki/Algebraic_number

    The name algebraic integer comes from the fact that the only rational numbers that are algebraic integers are the integers, and because the algebraic integers in any number field are in many ways analogous to the integers. If K is a number field, its ring of integers is the subring of algebraic integers in K, and is frequently denoted as O K.

  8. Passive vs. Non-Passive Income: What's the Actual Difference?

    www.aol.com/finance/passive-vs-non-passive...

    The post Passive vs. Non-Passive Income: What's the Difference? appeared first on SmartReads by SmartAsset. The key to effective financial planning are two primary types of income: Passive and non ...

  9. Integer (computer science) - Wikipedia

    en.wikipedia.org/wiki/Integer_(computer_science)

    In computer science, an integer is a datum of integral data type, a data type that represents some range of mathematical integers. Integral data types may be of different sizes and may or may not be allowed to contain negative values. Integers are commonly represented in a computer as a group of binary digits (bits). The size of the grouping ...