Step 1: Determine the UTF-8 encoding bit layout
The character ⇊ has the Unicode code point U+21CA. 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+21CA to binary:
00100001 11001010. 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 10001010
DOWNWARDS PAIRED ARROWS·U+21CA
⇊
Character Information
Code Point
U+21CA
HEX
21CA
Unicode Plane
Basic Multilingual Plane
Category
Other Symbol
Character Representations
Click elements to copy| Encoding | Hex | Binary |
|---|---|---|
| UTF8 | E2 87 8A | 11100010 10000111 10001010 |
| UTF16 (big Endian) | 21 CA | 00100001 11001010 |
| UTF16 (little Endian) | CA 21 | 11001010 00100001 |
| UTF32 (big Endian) | 00 00 21 CA | 00000000 00000000 00100001 11001010 |
| UTF32 (little Endian) | CA 21 00 00 | 11001010 00100001 00000000 00000000 |
HTML Entity
⇊
URI Encoded
%E2%87%8A
Description
The Unicode character U+21CA, known as the "DOWNWARDS PAIRED ARROWS", is a symbol predominantly used in mathematics and computer science to represent a pair of arrows pointing downwards. This glyph is widely utilized in digital text for denoting reverse arrows or for illustrating the concept of reversing an action. Though this character does not hold any cultural, linguistic, or regional significance, it serves a crucial role in technical documentation and mathematical equations. In computer programming languages and software development, it is often used to indicate a reversal in flow control structures such as loops or recursion. It ensures accuracy and clarity in the representation of computational processes and algorithms.
How to type the ⇊ symbol on Windows
Hold Alt and type 8650 on the numpad. Or use Character Map.