Step 1: Determine the UTF-8 encoding bit layout
The character ⇅ has the Unicode code point U+21C5. 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+21C5 to binary:
00100001 11000101. 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 10000101
UPWARDS ARROW LEFTWARDS OF DOWNWARDS ARROW·U+21C5
⇅
Character Information
Code Point
U+21C5
HEX
21C5
Unicode Plane
Basic Multilingual Plane
Category
Other Symbol
Character Representations
Click elements to copy| Encoding | Hex | Binary |
|---|---|---|
| UTF8 | E2 87 85 | 11100010 10000111 10000101 |
| UTF16 (big Endian) | 21 C5 | 00100001 11000101 |
| UTF16 (little Endian) | C5 21 | 11000101 00100001 |
| UTF32 (big Endian) | 00 00 21 C5 | 00000000 00000000 00100001 11000101 |
| UTF32 (little Endian) | C5 21 00 00 | 11000101 00100001 00000000 00000000 |
HTML Entity
⇅
URI Encoded
%E2%87%85
Description
The Unicode character U+21C5, known as the "Upwards Arrow Leftwards of Downwards Arrow," serves a specific function in digital text, primarily in mathematical expressions, computer programming, and certain symbolic notations. In these contexts, it represents a directional change or transition, typically indicating that an operation should be performed in reverse order. This character is particularly useful in mathematical formulas where the concept of "undoing" an operation is vital for calculations. It's also used in programming languages to demonstrate control flow, such as loops and recursive function calls, providing a visual cue for understanding the sequence of operations. Despite its seemingly complex appearance, the U+21C5 character plays a crucial role in clarifying the logical flow and direction of processes in various disciplines where precise sequencing is essential.
How to type the ⇅ symbol on Windows
Hold Alt and type 8645 on the numpad. Or use Character Map.