DOWNWARDS TRIPLE ARROW·U+290B

Character Information

Code Point
U+290B
HEX
290B
Unicode Plane
Basic Multilingual Plane
Category
Math Symbol

Character Representations

Click elements to copy
EncodingHexBinary
UTF8
E2 A4 8B
11100010 10100100 10001011
UTF16 (big Endian)
29 0B
00101001 00001011
UTF16 (little Endian)
0B 29
00001011 00101001
UTF32 (big Endian)
00 00 29 0B
00000000 00000000 00101001 00001011
UTF32 (little Endian)
0B 29 00 00
00001011 00101001 00000000 00000000
HTML Entity
⤋
URI Encoded
%E2%A4%8B

Description

The Unicode character U+290B represents the DOWNWARDS TRIPLE ARROW. It is a mathematical symbol used to denote a decrement operation in programming and digital text. This symbol is not limited to any specific language or culture, but rather serves as a universal icon in various fields such as computer science, mathematics, and engineering. The DOWNWARDS TRIPLE ARROW has found particular utility in algorithms and programming languages where it signifies the act of stepping back three steps within a data structure, often used in recursive functions or loops. Due to its versatile usage and universal appeal, the DOWNWARDS TRIPLE ARROW is considered an indispensable tool for programmers and mathematicians alike.

How to type the symbol on Windows

Hold Alt and type 10507 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+290B. 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+290B to binary: 00101001 00001011. 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 10100100 10001011