Step 1: Determine the UTF-8 encoding bit layout
The character ̉ has the Unicode code point U+0309. In UTF-8, it is encoded using 2 bytes because its codepoint is in the range of
0x0080to0x07ff.
Therefore we know that the UTF-8 encoding will be done over 11 bits within the final 16 bits and that it will have the format:110xxxxx 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+0309 to binary:
00000011 00001001. 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:
11001100 10001001
COMBINING HOOK ABOVE·U+0309
̉
Character Information
Code Point
U+0309
HEX
0309
Unicode Plane
Basic Multilingual Plane
Category
Nonspacing Mark
Character Representations
Click elements to copy| Encoding | Hex | Binary |
|---|---|---|
| UTF8 | CC 89 | 11001100 10001001 |
| UTF16 (big Endian) | 03 09 | 00000011 00001001 |
| UTF16 (little Endian) | 09 03 | 00001001 00000011 |
| UTF32 (big Endian) | 00 00 03 09 | 00000000 00000000 00000011 00001001 |
| UTF32 (little Endian) | 09 03 00 00 | 00001001 00000011 00000000 00000000 |
HTML Entity
̉
URI Encoded
%CC%89
Description
The Unicode character U+0309, known as the COMBINING HOOK ABOVE, serves a critical role in typography by allowing for the modification of existing characters within digital text. This character is used to create diacritical marks or accents on letters to represent distinct sounds or meanings across various languages and scripts. It is particularly significant in Greek typography, where it is employed as part of the polytonic system to denote specific syllabic stresses. The COMBINING HOOK ABOVE ensures that text remains accurate, precise, and culturally appropriate by providing a flexible tool for adapting existing characters without introducing new glyphs or symbols. In linguistic and cultural contexts where diacritical marks are crucial for conveying meaning, the COMBINING HOOK ABOVE plays an indispensable role in maintaining clear communication and preserving the integrity of written language.
How to type the ̉ symbol on Windows
Hold Alt and type 0777 on the numpad. Or use Character Map.