Step 1: Determine the UTF-8 encoding bit layout
The character ∪ has the Unicode code point U+222A. In UTF-8, it is encoded using 3 bytes because its codepoint is in the range of
0x0800to0xffff.
Therefore we know that the UTF-8 encoding will be done over 16 bits within the final 24 bits and that it will have the format:1110xxxx 10xxxxxx 10xxxxxx
Where thexare the payload bits.UTF-8 Encoding bit layout by codepoint range Codepoint Range Bytes Bit pattern Payload length U+0000 - U+007F 1 0xxxxxxx 7 bits U+0080 - U+07FF 2 110xxxxx 10xxxxxx 11 bits U+0800 - U+FFFF 3 1110xxxx 10xxxxxx 10xxxxxx 16 bits U+10000 - U+10FFFF 4 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx 21 bits Step 2: Obtain the payload bits:
Convert the hexadecimal code point U+222A to binary:
00100010 00101010. Those are the payload bits.Step 3: Fill in the bits to match the bit pattern:
Obtain the final bytes by arranging the paylod bits to match the bit layout:
11100010 10001000 10101010
UNION·U+222A
∪
Character Information
Code Point
U+222A
HEX
222A
Unicode Plane
Basic Multilingual Plane
Category
Math Symbol
Character Representations
Click elements to copy| Encoding | Hex | Binary |
|---|---|---|
| UTF8 | E2 88 AA | 11100010 10001000 10101010 |
| UTF16 (big Endian) | 22 2A | 00100010 00101010 |
| UTF16 (little Endian) | 2A 22 | 00101010 00100010 |
| UTF32 (big Endian) | 00 00 22 2A | 00000000 00000000 00100010 00101010 |
| UTF32 (little Endian) | 2A 22 00 00 | 00101010 00100010 00000000 00000000 |
HTML Entity
∪
URI Encoded
%E2%88%AA
Description
The Unicode character U+222A represents the mathematical symbol for Union (⋃). This symbol is used extensively in digital texts to denote the union of two or more sets, a fundamental concept in set theory and an important operation in computer science. In its role as a union operator, U+222A helps determine common elements among given sets, allowing for the creation of a new set that encompasses all unique members across the original sets. While not specific to any particular culture or language, U+222A's application in digital text is universal and essential to understanding complex relationships within data structures. Its use transcends linguistic boundaries and remains a crucial tool for mathematicians, computer scientists, and anyone working with sets and algebraic structures.
How to type the ∪ symbol on Windows
Hold Alt and type 8746 on the numpad. Or use Character Map.