U+2124 Double-Struck Capital Z
U+2124 was added in Unicode version 1.1 in 1993. It belongs to the block
This character is a Uppercase Letter and is commonly used, that is, in no specific script. The character is also known as the set of integers.
The glyph is a font version of the glyph
The Wikipedia has the following information about this codepoint:
An integer is the number zero (0), a positive natural number (1, 2, 3, etc.) or a negative integer (−1, −2, −3, etc.). The negative numbers are the additive inverses of the corresponding positive numbers. The set of all integers is often denoted by the boldface Z or blackboard bold .
The set of natural numbers is a subset of , which in turn is a subset of the set of all rational numbers , itself a subset of the real numbers . Like the set of natural numbers, the set of integers is countably infinite. An integer may be regarded as a real number that can be written without a fractional component. For example, 21, 4, 0, and −2048 are integers, while 9.75, 5+1/2, and √2 are not.
The integers form the smallest group and the smallest ring containing the natural numbers. In algebraic number theory, the integers are sometimes qualified as rational integers to distinguish them from the more general algebraic integers. In fact, (rational) integers are algebraic integers that are also rational numbers.
Representations
System | Representation |
---|---|
Nº | 8484 |
UTF-8 | E2 84 A4 |
UTF-16 | 21 24 |
UTF-32 | 00 00 21 24 |
URL-Quoted | %E2%84%A4 |
HTML hex reference | ℤ |
Wrong windows-1252 Mojibake | ℤ |
HTML named entity | ℤ |
HTML named entity | ℤ |
alias | the set of integers |
LATEX | \mathbb{Z} |
Related Characters
Confusables
Elsewhere
Complete Record
Property | Value |
---|---|
1.1 (1993) | |
DOUBLE-STRUCK CAPITAL Z | |
DOUBLE-STRUCK Z | |
Letterlike Symbols | |
Uppercase Letter | |
Common | |
Left To Right | |
Not Reordered | |
font | |
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✘ | |
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✔ | |
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✘ | |
✔ | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
✔ | |
✘ | |
✘ | |
✘ | |
✔ | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
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|
Any | |
✔ | |
✘ | |
✘ | |
✘ | |
✘ | |
✔ | |
✔ | |
✘ | |
✘ | |
0 | |
0 | |
0 | |
✘ | |
None | |
— | |
NA | |
Other | |
— | |
✘ | |
✘ | |
✔ | |
✘ | |
Yes | |
Yes | |
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|
No | |
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|
No | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
✔ | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
Upper | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
Alphabetic Letter | |
✘ | |
✔ | |
✔ | |
✘ | |
✘ | |
✘ | |
✘ | |
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None | |
neutral | |
Not Applicable | |
— | |
No_Joining_Group | |
Non Joining | |
Alphabetic | |
none | |
not a number | |
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R |