CORRESPONDS TO·U+2258

Character Information

Code Point
U+2258
HEX
2258
Unicode Plane
Basic Multilingual Plane
Category
Math Symbol

Character Representations

Click elements to copy
EncodingHexBinary
UTF8
E2 89 98
11100010 10001001 10011000
UTF16 (big Endian)
22 58
00100010 01011000
UTF16 (little Endian)
58 22
01011000 00100010
UTF32 (big Endian)
00 00 22 58
00000000 00000000 00100010 01011000
UTF32 (little Endian)
58 22 00 00
01011000 00100010 00000000 00000000
HTML Entity
≘
URI Encoded
%E2%89%98

Description

The Unicode character U+2258 represents the "∂" symbol, known as the partial differential symbol or Nabla. This mathematical symbol is commonly used in equations to represent a partial derivative, which measures how much a scalar function changes relative to a particular variable, holding all other variables constant. In digital text, it is often seen in fields such as mathematics, physics, and engineering where calculus and partial derivatives are essential concepts. The Nabla symbol has been adopted as a typographical representation of this mathematical operator, likely due to its association with the ancient Greek word for a wind instrument, which was thought to "blow" or influence change.

How to type the symbol on Windows

Hold Alt and type 8792 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+2258. 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+2258 to binary: 00100010 01011000. 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 10001001 10011000