U+1D7D9 Mathematical Double-Struck Digit One
U+1D7D9 was added in Unicode version 3.1 in 2001. It belongs to the block
This character is a Decimal Number and is commonly used, that is, in no specific script. The codepoint has the decimal value 1.
The glyph is a font version of the glyph
The Wikipedia has the following information about this codepoint:
In linear algebra, the identity matrix of size is the square matrix with ones on the main diagonal and zeros elsewhere. It has unique properties, for example when the identity matrix represents a geometric transformation, the object remains unchanged by the transformation. In other contexts, it is analogous to multiplying by the number 1.
Representations
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NΒΊ | |
UTF-8 | |
UTF-16 | |
UTF-32 | |
URL-Quoted | |
HTML hex reference | |
Wrong windows-1252 Mojibake | |
Encoding: GB18030 (hex bytes) | |
LATEX | |
RFC 5137 | |
Bash and Zsh inside echo -e | |
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Matlab | |
Perl | |
PHP | |
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PowerShell | |
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Ruby | |
Rust | |
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Related Characters
Confusables
Elsewhere
Complete Record
Property | Value |
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3.1 (2001) | |
MATHEMATICAL DOUBLE-STRUCK DIGIT ONE | |
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Mathematical Alphanumeric Symbols | |
Decimal Number | |
Common | |
European Number | |
Not Reordered | |
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Any | |
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0 | |
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0 | |
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None | |
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NA | |
Other | |
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Yes | |
Yes | |
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Numeric | |
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Numeric | |
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neutral | |
Not Applicable | |
β | |
No_Joining_Group | |
Non Joining | |
Numeric | |
decimal | |
1 | |
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R |