SQUARE WITH UPPER LEFT DIAGONAL HALF BLACK·U+25E9

Character Information

Code Point
U+25E9
HEX
25E9
Unicode Plane
Basic Multilingual Plane
Category
Other Symbol

Character Representations

Click elements to copy
EncodingHexBinary
UTF8
E2 97 A9
11100010 10010111 10101001
UTF16 (big Endian)
25 E9
00100101 11101001
UTF16 (little Endian)
E9 25
11101001 00100101
UTF32 (big Endian)
00 00 25 E9
00000000 00000000 00100101 11101001
UTF32 (little Endian)
E9 25 00 00
11101001 00100101 00000000 00000000
HTML Entity
◩
URI Encoded
%E2%97%A9

Description

U+25E9, also known as the "SQUARE WITH UPPER LEFT DIAGONAL HALF BLACK" character, is a typographic symbol commonly employed in digital text to create visual effects or design elements. The symbol features a square shape with an upper left diagonal half black, which can be used for various purposes, including creating borders, dividers, and other decorative elements within digital content. While it may not have a direct linguistic or cultural context, the SQUARE WITH UPPER LEFT DIAGONAL HALF BLACK character contributes to the visual appeal and overall aesthetics of text-based designs. As typography continues to evolve, such Unicode characters play a crucial role in enabling designers to express their creativity and enhance user experiences across digital platforms.

How to type the symbol on Windows

Hold Alt and type 9705 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+25E9. 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+25E9 to binary: 00100101 11101001. 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 10010111 10101001