U+1D54B "𝕋" Mathematical Double-Struck Capital T Unicode Character
Unicode Version 17.0
𝕋
U+1D54B "𝕋" Mathematical Double-Struck Capital T is part of the "Mathematical Alphanumeric Symbols" block, representing a bold blackboard or double-struck style uppercase T. It is commonly used in mathematical and scientific notation to denote specific sets, such as the set of all unitary matrices or the torus in topology, and it can also represent the transpose operation in linear algebra or other specialized structures like the tangent bundle. This character, encoded in Unicode 3.1, allows for precise typographic representation in digital text without relying on font or styling workarounds.
General Properties
| Code Point | U+1D54B |
| Version Added | 3.1 |
| Name | Mathematical Double-Struck Capital T |
| Block | Mathematical Alphanumeric Symbols |
| General Category | Uppercase Letter |
| Canonical Combining Class | Not Reordered |
| Bidirectional Class | Left To Right |
| Decomposition Type | Font |
| Decomposition Mapping | "T" U+0054 Latin Capital Letter T |
Encodings
| HTML Decimal Encoding | 𝕋 |
| HTML Hex Encoding | 𝕋 |
| UTF-8 Encoding | 0xF0 0x9D 0x95 0x8B |
| UTF-16 Encoding | 0xD835 0xDD4B |
| UTF-32 Encoding | 0x0001D54B |
| C/C++/Java Escape | \ud835\udd4b |
Unicode Properties
| NFC Quick Check | Yes |
| NFD Quick Check | Yes |
| Numeric Type | None |
| Numeric Value | NaN |
| Line Break | Alphabetic |
| Uppercase | Yes |
| Cased | Yes |
| Changes When NFKC Casefolded | Yes |
| NFKC Casefold | "t" U+0074 Latin Small Letter T |
| NFKC Simple Casefold | "t" U+0074 Latin Small Letter T |
| Script | Common |
| Script Extensions | Common |
| Indic Syllabic Category | Other |
| ID Start | Yes |
| XID Start | Yes |
| ID Continue | Yes |
| XID Continue | Yes |
| Alphabetic | Yes |
| Math | Yes |
| Other Math | Yes |
| Vertical Orientation | Rotated |
| Grapheme Base | Yes |
| Grapheme Cluster Break | Other |
| Word Break | Alphabetic letter |
| Sentence Break | Upper |