Step 1: Determine the UTF-8 encoding bit layout
The character ◑ has the Unicode code point U+25D1. In UTF-8, it is encoded using 3 bytes because its codepoint is in the range of
0x0800
to0xffff
.
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 thex
are 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+25D1 to binary:
00100101 11010001
. 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 10010111 10010001
CIRCLE WITH RIGHT HALF BLACK·U+25D1
Character Information
Character Representations
Click elements to copyEncoding | Hex | Binary |
---|---|---|
UTF8 | E2 97 91 | 11100010 10010111 10010001 |
UTF16 (big Endian) | 25 D1 | 00100101 11010001 |
UTF16 (little Endian) | D1 25 | 11010001 00100101 |
UTF32 (big Endian) | 00 00 25 D1 | 00000000 00000000 00100101 11010001 |
UTF32 (little Endian) | D1 25 00 00 | 11010001 00100101 00000000 00000000 |
Description
The Unicode character U+25D1, known as "CIRCLE WITH RIGHT HALF BLACK," is a typographic symbol commonly used in digital text for creating simple shapes or for formatting purposes. Its typical usage involves representing a circle with the right half of it filled or shaded, typically used to create a visual effect or emphasize certain elements within a text. This character is widely used across various platforms and programming languages due to its versatility and compatibility with different fonts and styling options. There is no specific cultural, linguistic, or technical context associated with the U+25D1 character, as it serves more of a functional purpose in digital text formatting rather than conveying a specific meaning or reference. However, its widespread use highlights the importance of standardized symbols for creating consistent and easily interpretable visual elements across different languages and systems.
How to type the ◑ symbol on Windows
Hold Alt and type 9681 on the numpad. Or use Character Map.