NEITHER A SUPERSET OF NOR EQUAL TO·U+2289

Character Information

Code Point
U+2289
HEX
2289
Unicode Plane
Basic Multilingual Plane
Category
Math Symbol

Character Representations

Click elements to copy
EncodingHexBinary
UTF8
E2 8A 89
11100010 10001010 10001001
UTF16 (big Endian)
22 89
00100010 10001001
UTF16 (little Endian)
89 22
10001001 00100010
UTF32 (big Endian)
00 00 22 89
00000000 00000000 00100010 10001001
UTF32 (little Endian)
89 22 00 00
10001001 00100010 00000000 00000000
HTML Entity
⊉
URI Encoded
%E2%8A%89

Description

U+2289 is a unique Unicode character with the typographical designation of NEITHER A SUPERSET OF NOR EQUAL TO (⊄). This mathematical symbol, also known as the non-inclusion symbol, is employed in digital text, specifically within the realm of set theory and formal logic. It represents a relationship between two sets where neither one of them contains or equals the other. The character holds significance in these disciplines due to its ability to accurately depict this distinct relationship between sets. In both cultural and linguistic contexts, U+2289 is primarily utilized for its technical purpose within mathematical and logical expressions. Its accurate representation of a specific relationship between sets ensures clarity and precision in digital text, making it an essential tool for researchers and professionals in various scientific fields.

How to type the symbol on Windows

Hold Alt and type 8841 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+2289. 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+2289 to binary: 00100010 10001001. 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 10001010 10001001