Step 1: Determine the UTF-8 encoding bit layout
The character ⊟ has the Unicode code point U+229F. 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+229F to binary:
00100010 10011111. 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 10001010 10011111
SQUARED MINUS·U+229F
⊟
Character Information
Code Point
U+229F
HEX
229F
Unicode Plane
Basic Multilingual Plane
Category
Math Symbol
Character Representations
Click elements to copy| Encoding | Hex | Binary |
|---|---|---|
| UTF8 | E2 8A 9F | 11100010 10001010 10011111 |
| UTF16 (big Endian) | 22 9F | 00100010 10011111 |
| UTF16 (little Endian) | 9F 22 | 10011111 00100010 |
| UTF32 (big Endian) | 00 00 22 9F | 00000000 00000000 00100010 10011111 |
| UTF32 (little Endian) | 9F 22 00 00 | 10011111 00100010 00000000 00000000 |
HTML Entity
⊟
URI Encoded
%E2%8A%9F
Description
The Unicode character U+229F, known as the SQUARED MINUS (⊻), holds a significant role in mathematical and scientific digital text. Its primary function is to represent the set difference operation between two sets, specifically the symmetric difference of the sets. It allows for precise representation of subtraction processes in various branches of mathematics and computer science, including combinatorial mathematics, set theory, and data analysis. While it may not have a direct cultural or linguistic context, its use demonstrates the richness of Unicode in supporting diverse mathematical notations across languages and fields of study, thus contributing to global communication and understanding in scientific and technical domains.
How to type the ⊟ symbol on Windows
Hold Alt and type 8863 on the numpad. Or use Character Map.