DOES NOT PRECEDE·U+2280

Character Information

Code Point
U+2280
HEX
2280
Unicode Plane
Basic Multilingual Plane
Category
Math Symbol

Character Representations

Click elements to copy
EncodingHexBinary
UTF8
E2 8A 80
11100010 10001010 10000000
UTF16 (big Endian)
22 80
00100010 10000000
UTF16 (little Endian)
80 22
10000000 00100010
UTF32 (big Endian)
00 00 22 80
00000000 00000000 00100010 10000000
UTF32 (little Endian)
80 22 00 00
10000000 00100010 00000000 00000000
HTML Entity
⊀
URI Encoded
%E2%8A%80

Description

The Unicode character U+2280, known as "DOES NOT PRECEDE," is a symbol that denotes the relationship between two mathematical expressions in which the first expression does not precede the second. Typically used in digital text for mathematical notation and computer programming, this character helps clarify the order of operations in equations or algorithms. It is often utilized in computer algebra systems and mathematical software to ensure accurate calculations by explicitly defining the sequence of operations. The U+2280 symbol is not associated with any specific cultural, linguistic, or technical context, but rather serves as a universal tool for enhancing clarity and precision in mathematical expressions.

How to type the symbol on Windows

Hold Alt and type 8832 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+2280. 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+2280 to binary: 00100010 10000000. 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 10000000