U+210B "ℋ" Script Capital H Unicode Character
Unicode Version 17.0
ℋ
U+210B "ℋ" Script Capital H is a typographic symbol used primarily in mathematics and physics to represent the Hamiltonian operator in quantum mechanics, as well as the Hilbert space in functional analysis. It is part of the Letterlike Symbols block, designed to distinguish this stylized, calligraphic form from the standard Latin letter H for clarity in scientific notation. The character is commonly employed in equations and formal texts where a script capital H is needed to denote specific mathematical or physical concepts, ensuring precision in specialized academic and technical writing.
General Properties
| Code Point | U+210B |
| Version Added | 1.1 |
| Name | Script Capital H |
| Unicode 1.0 Name | Script H |
| Block | Letterlike Symbols |
| General Category | Uppercase Letter |
| Canonical Combining Class | Not Reordered |
| Bidirectional Class | Left To Right |
| Decomposition Type | Font |
| Decomposition Mapping | "H" U+0048 Latin Capital Letter H |
Encodings
| HTML Decimal Encoding | ℋ |
| HTML Hex Encoding | ℋ |
| UTF-8 Encoding | 0xE2 0x84 0x8B |
| UTF-16 Encoding | 0x210B |
| UTF-32 Encoding | 0x0000210B |
| C/C++/Java Escape | \u210b |
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 | "h" U+0068 Latin Small Letter H |
| NFKC Simple Casefold | "h" U+0068 Latin Small Letter H |
| 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 |