Step 1: Determine the UTF-8 encoding bit layout
The character ₐ has the Unicode code point U+2090. 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+2090 to binary:
00100000 10010000. 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 10000010 10010000
LATIN SUBSCRIPT SMALL LETTER A·U+2090
ₐ
Character Information
Code Point
U+2090
HEX
2090
Unicode Plane
Basic Multilingual Plane
Category
Modifier Letter
Character Representations
Click elements to copy| Encoding | Hex | Binary |
|---|---|---|
| UTF8 | E2 82 90 | 11100010 10000010 10010000 |
| UTF16 (big Endian) | 20 90 | 00100000 10010000 |
| UTF16 (little Endian) | 90 20 | 10010000 00100000 |
| UTF32 (big Endian) | 00 00 20 90 | 00000000 00000000 00100000 10010000 |
| UTF32 (little Endian) | 90 20 00 00 | 10010000 00100000 00000000 00000000 |
HTML Entity
ₐ
URI Encoded
%E2%82%90
Description
The Unicode character U+2090, known as the "LATIN SUBSCRIPT SMALL LETTER A", is a typographical representation used in digital text to depict the lowercase letter 'a' with a subscript positioning. This character is often employed in mathematical expressions and scientific notation to denote variables or indicate positions within chemical formulas, where subscripts are commonly utilized for specifying isotopes or empirical formulas. The usage of U+2090 adheres to the principles of Unicode, which strives to provide a consistent methodology across diverse writing systems and languages, fostering global communication in digital text. Its incorporation into digital media ensures that documents remain legible and accurately convey the intended information, especially within specialized fields such as chemistry and mathematics.
How to type the ₐ symbol on Windows
Hold Alt and type 8336 on the numpad. Or use Character Map.