Step 1: Determine the UTF-8 encoding bit layout
The character ⩁ has the Unicode code point U+2A41. 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+2A41 to binary:
00101010 01000001. 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 10101001 10000001
UNION WITH MINUS SIGN·U+2A41
⩁
Character Information
Code Point
U+2A41
HEX
2A41
Unicode Plane
Basic Multilingual Plane
Category
Math Symbol
Character Representations
Click elements to copy| Encoding | Hex | Binary |
|---|---|---|
| UTF8 | E2 A9 81 | 11100010 10101001 10000001 |
| UTF16 (big Endian) | 2A 41 | 00101010 01000001 |
| UTF16 (little Endian) | 41 2A | 01000001 00101010 |
| UTF32 (big Endian) | 00 00 2A 41 | 00000000 00000000 00101010 01000001 |
| UTF32 (little Endian) | 41 2A 00 00 | 01000001 00101010 00000000 00000000 |
HTML Entity
⩁
URI Encoded
%E2%A9%81
Description
The Unicode character U+2A41, known as the Union with Minus Sign (⨹), is a typographic symbol used primarily in digital text for mathematical and technical notations. It represents a set union operation with the subtraction operator, often utilized in set theory to indicate the difference between two sets. Its typical usage lies within mathematical equations or scientific notations where it may represent the union of two sets and subtraction simultaneously. While not widely used in everyday language, its importance is significant within niche fields like computer science and engineering, especially when dealing with operations on sets. The character does not have any notable cultural, linguistic, or technical context beyond its mathematical application.
How to type the ⩁ symbol on Windows
Hold Alt and type 10817 on the numpad. Or use Character Map.