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ID: INPUT{id.yaml} Title: > Rational numbers Definition: > The field of rational numbers $\mathbb{Q}$ is the field of fractions of the HREF{Integers}[integers] $\mathbb{Z}$. Parameters: a: type: Q Comments: comment-field: > The rational numbers form a field with respect to the usual addition and multiplication. Formulas: Programs: program-sage: language: Sage code: | numbers = QQ References: Links: Wiki: title: "Wikipedia: Rational number" url: https://en.wikipedia.org/wiki/Rational_number Similar tables: Keywords: Tags: - ring - field - Abelian group - rational Data properties: type: Q complete: no Display properties: number-header: > $a$ Numbers: -5: -5 -4: -4 -3: -3 -2: -2 -1: -1 0: number: 0 equals: HREF{Zero} 1: number: 1 equals: HREF{One} 2: 2 3: 3 4: 4 5: 5 -5/2: -5/2 -3/2: -3/2 -1/2: -1/2 1/2: 1/2 3/2: 3/2 5/2: 5/2 -5/3: -5/3 -4/3: -4/3 -2/3: -2/3 -1/3: -1/3 1/3: 1/3 2/3: 2/3 4/3: 4/3 5/3: 5/3 -5/4: -5/4 -3/4: -3/4 -1/4: -1/4 1/4: 1/4 3/4: 3/4 5/4: 5/4 -4/5: -4/5 -3/5: -3/5 -2/5: -2/5 -1/5: -1/5 1/5: 1/5 2/5: 2/5 3/5: 3/5 4/5: 4/5
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Rational numbers
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Numbers
$a$ 
$a$
-5:
-5
-4:
-4
-3:
-3
-2:
-2
-1:
-1
0:
0
1:
1
2:
2
3:
3
4:
4
5:
5
-5/2:
-5/2
-3/2:
-3/2
-1/2:
-1/2
1/2:
1/2
3/2:
3/2
5/2:
5/2
-5/3:
-5/3
-4/3:
-4/3
-2/3:
-2/3
-1/3:
-1/3
1/3:
1/3
2/3:
2/3
4/3:
4/3
5/3:
5/3
-5/4:
-5/4
-3/4:
-3/4
-1/4:
-1/4
1/4:
1/4
3/4:
3/4
5/4:
5/4
-4/5:
-4/5
-3/5:
-3/5
-2/5:
-2/5
-1/5:
-1/5
1/5:
1/5
2/5:
2/5
3/5:
3/5
4/5:
4/5
Definition
The field of rational numbers $\mathbb{Q}$ is the field of fractions of the
integers
$\mathbb{Z}$.
Parameters
$a$
— rational number
Comments
(1)
The rational numbers form a field with respect to the usual addition and multiplication.
Programs
(P1)
Sage
numbers = QQ
Links
[1]
Wikipedia: Rational number
Data properties
Entries are of type: rational number
Table is complete: no