Step 1: Determine the UTF-8 encoding bit layout
The character ⊁ has the Unicode code point U+2281. 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+2281 to binary:
00100010 10000001. 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 10000001
DOES NOT SUCCEED·U+2281
⊁
Character Information
Code Point
U+2281
HEX
2281
Unicode Plane
Basic Multilingual Plane
Category
Math Symbol
Character Representations
Click elements to copy| Encoding | Hex | Binary |
|---|---|---|
| UTF8 | E2 8A 81 | 11100010 10001010 10000001 |
| UTF16 (big Endian) | 22 81 | 00100010 10000001 |
| UTF16 (little Endian) | 81 22 | 10000001 00100010 |
| UTF32 (big Endian) | 00 00 22 81 | 00000000 00000000 00100010 10000001 |
| UTF32 (little Endian) | 81 22 00 00 | 10000001 00100010 00000000 00000000 |
HTML Entity
⊁
URI Encoded
%E2%8A%81
Description
The Unicode character U+2281, known as "Does Not Succeed", is a mathematical symbol used to represent the concept of an unsuccessful proof or invalid argument in mathematical expressions and logical statements. It is often utilized in digital text when discussing formal proof systems or within the context of logic and set theory. Although it does not hold significant cultural or linguistic relevance, it serves as an important tool for mathematicians and logicians to clearly convey the notion of a failed attempt at proving a statement. The use of U+2281 in digital text helps maintain accuracy and clarity when communicating complex mathematical ideas, ensuring that readers can easily understand the intended meaning.
How to type the ⊁ symbol on Windows
Hold Alt and type 8833 on the numpad. Or use Character Map.