U+2A04 "⨄" N-Ary Union Operator with Plus Unicode Character
Unicode Version 17.0
U+2A04 "⨄" N-Ary Union Operator with Plus is a mathematical symbol that represents the indexed union of a collection of sets where the union operation also incorporates an addition or summation component, often used in advanced set theory, algebra, or database theory to denote a form of union that preserves or counts multiplicities rather than merging duplicate elements into a single instance. It visually resembles a standard large union symbol (like a big U) but includes a small plus sign embedded within it, signaling that the operation combines sets in a way that maintains additive structure, such as in the context of multisets or operations where each occurrence of an element is significant. This character is part of the Supplemental Arrows-B block in Unicode and is typically employed in mathematical texts to differentiate this specific union-plus operation from the ordinary set union represented by U+22C3 (⋃).
General Properties
Encodings
| HTML Decimal Encoding |
⨄ |
| HTML Hex Encoding |
⨄ |
| UTF-8 Encoding |
0xE2 0xA8 0x84 |
| UTF-16 Encoding |
0x2A04 |
| UTF-32 Encoding |
0x00002A04 |
| C/C++/Java Escape |
\u2a04 |
Unicode Properties