Step 1: Determine the UTF-8 encoding bit layout
The character ₑ has the Unicode code point U+2091. 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+2091 to binary:
00100000 10010001. 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 10010001
LATIN SUBSCRIPT SMALL LETTER E·U+2091
ₑ
Character Information
Code Point
U+2091
HEX
2091
Unicode Plane
Basic Multilingual Plane
Category
Modifier Letter
Character Representations
Click elements to copy| Encoding | Hex | Binary |
|---|---|---|
| UTF8 | E2 82 91 | 11100010 10000010 10010001 |
| UTF16 (big Endian) | 20 91 | 00100000 10010001 |
| UTF16 (little Endian) | 91 20 | 10010001 00100000 |
| UTF32 (big Endian) | 00 00 20 91 | 00000000 00000000 00100000 10010001 |
| UTF32 (little Endian) | 91 20 00 00 | 10010001 00100000 00000000 00000000 |
HTML Entity
ₑ
URI Encoded
%E2%82%91
Description
The Unicode character U+2091, known as the Latin Subscript Small Letter E, is a typographical symbol that plays a vital role in digital text, particularly within the realm of chemistry and mathematics. In these fields, it is often employed to denote subscripts within chemical formulas or mathematical equations, such as in the representation of isotopes or atomic structures. For instance, an atom with an odd number of protons might be represented as He-6 (using U+2091 for the subscript "e" and U+0048 for the superscript digit "8"). Its precise usage depends on the specific digital text context, ensuring clear communication in various disciplines.
How to type the ₑ symbol on Windows
Hold Alt and type 8337 on the numpad. Or use Character Map.