Step 1: Determine the UTF-8 encoding bit layout
The character ∁ has the Unicode code point U+2201. 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+2201 to binary:
00100010 00000001. 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 10000001
COMPLEMENT·U+2201
∁
Character Information
Code Point
U+2201
HEX
2201
Unicode Plane
Basic Multilingual Plane
Category
Math Symbol
Character Representations
Click elements to copy| Encoding | Hex | Binary |
|---|---|---|
| UTF8 | E2 88 81 | 11100010 10001000 10000001 |
| UTF16 (big Endian) | 22 01 | 00100010 00000001 |
| UTF16 (little Endian) | 01 22 | 00000001 00100010 |
| UTF32 (big Endian) | 00 00 22 01 | 00000000 00000000 00100010 00000001 |
| UTF32 (little Endian) | 01 22 00 00 | 00000001 00100010 00000000 00000000 |
HTML Entity
∁
URI Encoded
%E2%88%81
Description
The Unicode character U+2201, known as the "Complement" symbol, plays a crucial role in digital text, particularly within mathematical expressions. It is commonly used to represent the complement of a set or event in probability theory and set theory. This symbol is essential for accurately conveying complex concepts in these fields, where it denotes the subset of elements that are not included in a given set. The Complement symbol is widely employed across diverse cultures and languages, as it transcends linguistic barriers due to its mathematical nature. As part of the Unicode Standard, this character adheres to strict technical requirements, ensuring consistency and legibility across various platforms and applications. In summary, U+2201 (COMPLEMENT) is a fundamental component in digital text, particularly in mathematics, offering a universally understood symbol for expressing complementary sets or events.
How to type the ∁ symbol on Windows
Hold Alt and type 8705 on the numpad. Or use Character Map.