KANGXI RADICAL BLACK·U+2FCA

Character Information

Code Point
U+2FCA
HEX
2FCA
Unicode Plane
Basic Multilingual Plane
Category
Other Symbol

Character Representations

Click elements to copy
EncodingHexBinary
UTF8
E2 BF 8A
11100010 10111111 10001010
UTF16 (big Endian)
2F CA
00101111 11001010
UTF16 (little Endian)
CA 2F
11001010 00101111
UTF32 (big Endian)
00 00 2F CA
00000000 00000000 00101111 11001010
UTF32 (little Endian)
CA 2F 00 00
11001010 00101111 00000000 00000000
HTML Entity
⿊
URI Encoded
%E2%BF%8A

Description

The Unicode character U+2FCA, known as the "Kangxi Radical Black", is a specialized typographical symbol used primarily in the Chinese writing system. Its role is to denote a specific class of characters called "radicals" in Kangxi Dictionary, which is a hierarchical organization of Chinese characters based on their meanings and etymologies. These radicals help in categorizing and understanding complex Chinese characters by breaking them down into simpler components. The Kangxi Radical Black symbol serves as a visual marker for the "Black" radical, which consists of strokes or elements found within certain Chinese characters. It is utilized mainly in digital text, reference materials, and educational resources related to Chinese linguistics and character analysis.

How to type the symbol on Windows

Hold Alt and type 12234 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+2FCA. 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+2FCA to binary: 00101111 11001010. 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 10111111 10001010