BRAILLE PATTERN DOTS-12357·U+2857

Character Information

Code Point
U+2857
HEX
2857
Unicode Plane
Basic Multilingual Plane
Category
Other Symbol

Character Representations

Click elements to copy
EncodingHexBinary
UTF8
E2 A1 97
11100010 10100001 10010111
UTF16 (big Endian)
28 57
00101000 01010111
UTF16 (little Endian)
57 28
01010111 00101000
UTF32 (big Endian)
00 00 28 57
00000000 00000000 00101000 01010111
UTF32 (little Endian)
57 28 00 00
01010111 00101000 00000000 00000000
HTML Entity
⡗
URI Encoded
%E2%A1%97

Description

The Unicode character U+2857, or Braille Pattern Dots-12357, is a crucial component in the Braille writing system. This character represents one of the 63 possible cells (or patterns) used to encode letters, numerals, and symbols. In digital text, it is typically utilized alongside other Braille characters to facilitate communication for visually impaired individuals who use braille displays connected to computers, smartphones, and other electronic devices. The Braille system was developed by Louis Braille in the early 19th century and has since become a vital tool for blind and visually impaired people worldwide. Its adaptation into digital text further enhances accessibility, empowering users with visual impairments to effectively read, write, and communicate in various languages.

How to type the symbol on Windows

Hold Alt and type 10327 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+2857. 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+2857 to binary: 00101000 01010111. 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 10100001 10010111