Step 1: Determine the UTF-8 encoding bit layout
The character ⢁ has the Unicode code point U+2881. 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+2881 to binary:
00101000 10000001
. 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 10100010 10000001
BRAILLE PATTERN DOTS-18·U+2881
Character Information
Character Representations
Click elements to copyEncoding | Hex | Binary |
---|---|---|
UTF8 | E2 A2 81 | 11100010 10100010 10000001 |
UTF16 (big Endian) | 28 81 | 00101000 10000001 |
UTF16 (little Endian) | 81 28 | 10000001 00101000 |
UTF32 (big Endian) | 00 00 28 81 | 00000000 00000000 00101000 10000001 |
UTF32 (little Endian) | 81 28 00 00 | 10000001 00101000 00000000 00000000 |
Description
U+2881, also known as Braille Pattern Dots-18, is a critical character in the realm of typography and digital text, specifically designed for use within the widely adopted braille system. The braille system enables individuals with visual impairments or blindness to read and write through tactile feedback. Each braille character consists of a series of six dots arranged in a 3x2 grid pattern, which are either raised or flat on the surface of the material being used. Braille Pattern Dots-18 is one of 63 different braille patterns that represent various alphabetic and numeric characters. The combination of dot positions within this pattern represents specific letters, numbers, or symbols. In digital text contexts, U+2881 helps ensure accessibility for blind users by allowing electronic devices to render tactile representations of the character using compatible hardware, such as braille displays or embossers. As a pivotal element in Braille Pattern Dots-18, U+2881 contributes significantly to cultural, linguistic, and technical advancements in digital accessibility. The use of this Unicode character not only enhances the inclusivity of digital text but also supports the continuation of the braille system's legacy as a vital tool for communication among individuals with visual impairments.
How to type the ⢁ symbol on Windows
Hold Alt and type 10369 on the numpad. Or use Character Map.