U+23B2 "⎲" Summation Top Unicode Character
Unicode Version 17.0
⎲
U+23B2 "⎲" Summation Top is a typographical symbol used primarily in mathematical notation to represent the top half of the summation sign, often paired with the Summation Bottom character (U+23B3) to form a complete, vertically extensible sigma (Σ) for use in plain text environments or specialized typesetting. Unlike the standard summation symbol found in typical fonts, this character is designed to allow multi‑line mathematical expressions to be constructed from separate glyphs, providing greater control over appearance in contexts where continuous Unicode text is required instead of formula editors.
General Properties
| Code Point | U+23B2 |
| Version Added | 3.2 |
| Name | Summation Top |
| Block | Miscellaneous Technical |
| General Category | Math Symbol |
| Canonical Combining Class | Not Reordered |
| Bidirectional Class | Other Neutral |
Encodings
| HTML Decimal Encoding | ⎲ |
| HTML Hex Encoding | ⎲ |
| UTF-8 Encoding | 0xE2 0x8E 0xB2 |
| UTF-16 Encoding | 0x23B2 |
| UTF-32 Encoding | 0x000023B2 |
| C/C++/Java Escape | \u23b2 |
Unicode Properties
| NFC Quick Check | Yes |
| NFD Quick Check | Yes |
| NFKC Quick Check | Yes |
| NFKD Quick Check | Yes |
| Numeric Type | None |
| Numeric Value | NaN |
| Line Break | Alphabetic |
| Script | Common |
| Script Extensions | Common |
| Indic Syllabic Category | Other |
| Pattern Syntax | Yes |
| Math | Yes |
| Vertical Orientation | Rotated |
| Grapheme Base | Yes |
| Grapheme Cluster Break | Other |
| Word Break | Other |
| Sentence Break | Other |