VERTICAL KANA REPEAT MARK·U+3031

Character Information

Code Point
U+3031
HEX
3031
Unicode Plane
Basic Multilingual Plane
Category
Modifier Letter

Character Representations

Click elements to copy
EncodingHexBinary
UTF8
E3 80 B1
11100011 10000000 10110001
UTF16 (big Endian)
30 31
00110000 00110001
UTF16 (little Endian)
31 30
00110001 00110000
UTF32 (big Endian)
00 00 30 31
00000000 00000000 00110000 00110001
UTF32 (little Endian)
31 30 00 00
00110001 00110000 00000000 00000000
HTML Entity
〱
URI Encoded
%E3%80%B1

Description

The Unicode character U+3031 is known as the Vertical Kana Repeat Mark. In digital text, this symbol plays a significant role in Japanese typography. Its primary function is to facilitate the input of kana characters, which are essential components of the Japanese writing system. The character repeats the preceding vertical kana character and is often used for abbreviating or shortening texts that heavily employ kana. This allows for more efficient input of text in digital environments, particularly in software applications designed for Japanese-language processing. Its use is primarily cultural and linguistic in nature, reflecting the unique aspects of the Japanese writing system. Overall, U+3031 serves as a valuable tool in simplifying the process of creating text with vertical kana characters, catering to the specific needs of the Japanese language.

How to type the symbol on Windows

Hold Alt and type 12337 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+3031. 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+3031 to binary: 00110000 00110001. 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 10110001