Step 1: Determine the UTF-8 encoding bit layout
The character ⒙ has the Unicode code point U+2499. 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+2499 to binary:
00100100 10011001
. 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 10010010 10011001
NUMBER EIGHTEEN FULL STOP·U+2499
⒙
Character Information
Code Point
U+2499
HEX
2499
Unicode Plane
Basic Multilingual Plane
Category
Other Number
Character Representations
Click elements to copyEncoding | Hex | Binary |
---|---|---|
UTF8 | E2 92 99 | 11100010 10010010 10011001 |
UTF16 (big Endian) | 24 99 | 00100100 10011001 |
UTF16 (little Endian) | 99 24 | 10011001 00100100 |
UTF32 (big Endian) | 00 00 24 99 | 00000000 00000000 00100100 10011001 |
UTF32 (little Endian) | 99 24 00 00 | 10011001 00100100 00000000 00000000 |
HTML Entity
⒙
URI Encoded
%E2%92%99
Description
The Unicode character U+2499, known as the NUMBER EIGHTEEN FULL STOP, is a specialized typographical symbol used in digital text for mathematical equations and scientific notations. It represents the number 18 with a horizontal line, or "full stop," placed beneath it, making it visually distinct from other numerals. This unique representation assists in preventing misreading of numerical values in complex mathematical expressions and calculations. Although the character is not widely used in everyday digital text, its presence can be crucial in scientific documents, engineering applications, and computer programming contexts to avoid ambiguity and enhance clarity.
How to type the ⒙ symbol on Windows
Hold Alt and type 9369 on the numpad. Or use Character Map.