U+23B3 "⎳" Summation Bottom Unicode Character
Unicode Version 17.0
⎳
U+23B3 "⎳" Summation Bottom is a typographic symbol used in mathematical notation to represent the lower horizontal segment of a large summation sign, complementing the summation top character to form a complete, extended sigma glyph for displaying sums with limits above and below.
General Properties
| Code Point | U+23B3 |
| Version Added | 3.2 |
| Name | Summation Bottom |
| 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 0xB3 |
| UTF-16 Encoding | 0x23B3 |
| UTF-32 Encoding | 0x000023B3 |
| C/C++/Java Escape | \u23b3 |
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 |