Step 1: Determine the UTF-8 encoding bit layout
The character ⇤ has the Unicode code point U+21E4. 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+21E4 to binary:
00100001 11100100. 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 10000111 10100100
LEFTWARDS ARROW TO BAR·U+21E4
⇤
Character Information
Code Point
U+21E4
HEX
21E4
Unicode Plane
Basic Multilingual Plane
Category
Other Symbol
Character Representations
Click elements to copy| Encoding | Hex | Binary |
|---|---|---|
| UTF8 | E2 87 A4 | 11100010 10000111 10100100 |
| UTF16 (big Endian) | 21 E4 | 00100001 11100100 |
| UTF16 (little Endian) | E4 21 | 11100100 00100001 |
| UTF32 (big Endian) | 00 00 21 E4 | 00000000 00000000 00100001 11100100 |
| UTF32 (little Endian) | E4 21 00 00 | 11100100 00100001 00000000 00000000 |
HTML Entity
⇤
URI Encoded
%E2%87%A4
Description
The Unicode character U+21E4, also known as the "LEFTWARDS ARROW TO BAR", is a specialized symbol used in digital text for various purposes. Its primary function is to represent a leftward arrow that contains a horizontal line, or bar, at its center. This combination of an arrow and a bar can be employed to indicate a specific type of directional movement, often in mathematical or technical contexts. It is frequently used in set theory to denote the complement of a set within a larger universal set, as well as in logic and programming languages for logical operations. While it may not have widespread cultural or linguistic significance, its usage in these specialized fields contributes to its importance in digital text representation and communication.
How to type the ⇤ symbol on Windows
Hold Alt and type 8676 on the numpad. Or use Character Map.