LEFT CORNER BRACKET·U+300C

Character Information

Code Point
U+300C
HEX
300C
Unicode Plane
Basic Multilingual Plane
Category
Open Punctuation

Character Representations

Click elements to copy
EncodingHexBinary
UTF8
E3 80 8C
11100011 10000000 10001100
UTF16 (big Endian)
30 0C
00110000 00001100
UTF16 (little Endian)
0C 30
00001100 00110000
UTF32 (big Endian)
00 00 30 0C
00000000 00000000 00110000 00001100
UTF32 (little Endian)
0C 30 00 00
00001100 00110000 00000000 00000000
HTML Entity
「
URI Encoded
%E3%80%8C

Description

The Unicode character U+300C, known as the Left Corner Bracket, is a valuable typographical symbol with diverse applications across various digital text contexts. This character plays a crucial role in encoding mathematical expressions, specifically as a left-hand delimiter for fractions or radicals in mathematical equations. It serves to enclose elements that require special treatment by layout or processing software, such as superscript and subscript text, making it indispensable in scientific and technical documentation. The Left Corner Bracket is not limited to mathematical usage; it also finds utility in computer programming languages, where it denotes the beginning of a block comment, enabling developers to include explanatory notes within their code without affecting its execution. While the Left Corner Bracket may seem like a niche character to some users, its significance cannot be overstated in fields that rely on precise mathematical and coding conventions.

How to type the symbol on Windows

Hold Alt and type 12300 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+300C. 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+300C to binary: 00110000 00001100. 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:
    11100011 10000000 10001100