Step 1: Determine the UTF-8 encoding bit layout
The character ⊑ has the Unicode code point U+2291. 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+2291 to binary:
00100010 10010001. 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 10010001
SQUARE IMAGE OF OR EQUAL TO·U+2291
⊑
Character Information
Code Point
U+2291
HEX
2291
Unicode Plane
Basic Multilingual Plane
Category
Math Symbol
Character Representations
Click elements to copy| Encoding | Hex | Binary |
|---|---|---|
| UTF8 | E2 8A 91 | 11100010 10001010 10010001 |
| UTF16 (big Endian) | 22 91 | 00100010 10010001 |
| UTF16 (little Endian) | 91 22 | 10010001 00100010 |
| UTF32 (big Endian) | 00 00 22 91 | 00000000 00000000 00100010 10010001 |
| UTF32 (little Endian) | 91 22 00 00 | 10010001 00100010 00000000 00000000 |
HTML Entity
⊑
URI Encoded
%E2%8A%91
Description
The Unicode character U+2291, also known as the SQUARE IMAGE OF OR EQUAL TO symbol, is a mathematical notation used in digital text to represent an inequality between two matrices or arrays in mathematics and computer science. This symbol is particularly significant in linear algebra and set theory, where it helps define and compare relations between matrices, sets, and other complex structures. The SQUARE IMAGE OF OR EQUAL TO symbol is crucial for clarity and precision in mathematical expressions, as it enables readers to easily identify the relationships and properties of the objects being compared. In addition to its role in digital text, the character has no specific cultural or linguistic context, making it a purely technical symbol used by mathematicians, computer scientists, and engineers worldwide.
How to type the ⊑ symbol on Windows
Hold Alt and type 8849 on the numpad. Or use Character Map.