Mathematical Double-Struck Digit One 𝟙
Symbol Meaning
Mathematical Double-Struck Digit One. Mathematical Alphanumeric Symbols.
The symbol “Mathematical Double-Struck Digit One” is included in the “Double-struck digits” subblock of the “Mathematical Alphanumeric Symbols” block and was approved as part of Unicode version 3.1 in 2001.
| Unicode Name | Mathematical Double-Struck Digit One |
| Unicode Number | |
| HTML Code | |
| CSS Code | |
| Plane | 1: Supplementary Multilingual Plane |
| Unicode Block | Mathematical Alphanumeric Symbols |
| Unicode Subblock | Double-struck digits |
| Unicode Version | 3.1 (2001) |
| Type of paired mirror bracket (bidi) | None |
| Composition Exclusion | No |
| Case change | 1D7D9 |
| Simple case change | 1D7D9 |
| Math | + |
| ID_Continue | + |
| XID_Continue | + |
| Grapheme_Base | + |
| scripts | Common |
| Other_Math | + |
| Encoding | hex | dec (bytes) | dec | binary |
|---|---|---|---|---|
| UTF-8 | F0 9D 9F 99 | 240 157 159 153 | 4036861849 | 11110000 10011101 10011111 10011001 |
| UTF-16BE | D8 35 DF D9 | 216 53 223 217 | 3627409369 | 11011000 00110101 11011111 11011001 |
| UTF-16LE | 35 D8 D9 DF | 53 216 217 223 | 903403999 | 00110101 11011000 11011001 11011111 |
| UTF-32BE | 00 01 D7 D9 | 0 1 215 217 | 120793 | 00000000 00000001 11010111 11011001 |
| UTF-32LE | D9 D7 01 00 | 217 215 1 0 | 3654746368 | 11011001 11010111 00000001 00000000 |