Step 1: Determine the UTF-8 encoding bit layout
The character ⇯ has the Unicode code point U+21EF. 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+21EF to binary:
00100001 11101111. 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 10101111
UPWARDS WHITE DOUBLE ARROW ON PEDESTAL·U+21EF
⇯
Character Information
Code Point
U+21EF
HEX
21EF
Unicode Plane
Basic Multilingual Plane
Category
Other Symbol
Character Representations
Click elements to copy| Encoding | Hex | Binary |
|---|---|---|
| UTF8 | E2 87 AF | 11100010 10000111 10101111 |
| UTF16 (big Endian) | 21 EF | 00100001 11101111 |
| UTF16 (little Endian) | EF 21 | 11101111 00100001 |
| UTF32 (big Endian) | 00 00 21 EF | 00000000 00000000 00100001 11101111 |
| UTF32 (little Endian) | EF 21 00 00 | 11101111 00100001 00000000 00000000 |
HTML Entity
⇯
URI Encoded
%E2%87%AF
Description
The Unicode character U+21EF, also known as the "Upwards White Double Arrow on Pedestal," is a symbol that represents an upward double arrow with a pedestal beneath it. This unique symbol has several applications in digital text, including its use in mathematics and computer science to denote operations or transformations. It can be found in various mathematical notations and algorithms, where it often signifies an action of moving upwards or elevating the value of a variable or function. Despite its relatively obscure usage, the Upwards White Double Arrow on Pedestal has played an essential role in the fields of mathematics and computer science, allowing for clear and concise communication of complex ideas and processes.
How to type the ⇯ symbol on Windows
Hold Alt and type 8687 on the numpad. Or use Character Map.