Step 1: Determine the UTF-8 encoding bit layout
The character ↥ has the Unicode code point U+21A5. 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+21A5 to binary:
00100001 10100101. 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 10000110 10100101
UPWARDS ARROW FROM BAR·U+21A5
↥
Character Information
Code Point
U+21A5
HEX
21A5
Unicode Plane
Basic Multilingual Plane
Category
Other Symbol
Character Representations
Click elements to copy| Encoding | Hex | Binary |
|---|---|---|
| UTF8 | E2 86 A5 | 11100010 10000110 10100101 |
| UTF16 (big Endian) | 21 A5 | 00100001 10100101 |
| UTF16 (little Endian) | A5 21 | 10100101 00100001 |
| UTF32 (big Endian) | 00 00 21 A5 | 00000000 00000000 00100001 10100101 |
| UTF32 (little Endian) | A5 21 00 00 | 10100101 00100001 00000000 00000000 |
HTML Entity
↥
URI Encoded
%E2%86%A5
Description
The Unicode character U+21A5, known as the Upwards Arrow from Bar, is a widely utilized symbol in digital text. This mathematical symbol primarily serves as an arrow pointing upwards above a horizontal line, often used to represent an element in a set, a limit of a function, or the limit of a sequence. Its role in typography and computer science is particularly significant, as it facilitates clear and concise communication of complex mathematical concepts. The Upwards Arrow from Bar is also employed in the context of computer programming, specifically for indicating the movement or direction in algorithms. Despite not having any direct cultural, linguistic, or technical context tied to its usage, this versatile symbol plays a crucial role in the fields of mathematics and computer science, aiding in the precise representation of mathematical formulas, functions, and sequences.
How to type the ↥ symbol on Windows
Hold Alt and type 8613 on the numpad. Or use Character Map.