BRAILLE PATTERN DOTS-18·U+2881

Character Information

Code Point
U+2881
HEX
2881
Unicode Plane
Basic Multilingual Plane
Category
Other Symbol

Character Representations

Click elements to copy
EncodingHexBinary
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
HTML Entity
⢁
URI Encoded
%E2%A2%81

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.

  1. 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 to 0xffff.

    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 the x are the payload bits.

    UTF-8 Encoding bit layout by codepoint range
    Codepoint RangeBytesBit patternPayload length
    U+0000 - U+007F10xxxxxxx7 bits
    U+0080 - U+07FF2110xxxxx 10xxxxxx11 bits
    U+0800 - U+FFFF31110xxxx 10xxxxxx 10xxxxxx16 bits
    U+10000 - U+10FFFF411110xxx 10xxxxxx 10xxxxxx 10xxxxxx21 bits
  2. Step 2: Obtain the payload bits:

    Convert the hexadecimal code point U+2881 to binary: 00101000 10000001. Those are the payload bits.

  3. 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