Character Information

Code Point
U+2308
HEX
2308
Unicode Plane
Basic Multilingual Plane
Category
Open Punctuation

Character Representations

Click elements to copy
EncodingHexBinary
UTF8
E2 8C 88
11100010 10001100 10001000
UTF16 (big Endian)
23 08
00100011 00001000
UTF16 (little Endian)
08 23
00001000 00100011
UTF32 (big Endian)
00 00 23 08
00000000 00000000 00100011 00001000
UTF32 (little Endian)
08 23 00 00
00001000 00100011 00000000 00000000
HTML Entity
⌈
URI Encoded
%E2%8C%88

Description

The Unicode character U+2308, known as the Left Ceiling, is a lesser-known symbol often employed in mathematical expressions and engineering diagrams. In its typical usage, it is utilized to denote an open upper limit or ceiling of a particular value. This can be particularly useful in mathematical formulas and technical documentation where clear communication of boundaries and ranges is crucial. The Left Ceiling character is part of the Geometric Shapes block in Unicode, and although not widely used, it plays a significant role for specialists and professionals who require precise representation in their work. Its inclusion in digital text allows for more accurate and comprehensive communication in fields such as mathematics, engineering, and data science.

How to type the symbol on Windows

Hold Alt and type 8968 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+2308. 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+2308 to binary: 00100011 00001000. 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 10001100 10001000