RIGHTWARDS DOUBLE ARROW·U+21D2

Character Information

Code Point
U+21D2
HEX
21D2
Unicode Plane
Basic Multilingual Plane
Category
Math Symbol

Character Representations

Click elements to copy
EncodingHexBinary
UTF8
E2 87 92
11100010 10000111 10010010
UTF16 (big Endian)
21 D2
00100001 11010010
UTF16 (little Endian)
D2 21
11010010 00100001
UTF32 (big Endian)
00 00 21 D2
00000000 00000000 00100001 11010010
UTF32 (little Endian)
D2 21 00 00
11010010 00100001 00000000 00000000
HTML Entity
⇒
URI Encoded
%E2%87%92

Description

The Unicode character U+21D2 is a symbol called the RIGHTWARDS DOUBLE ARROW. It holds significant importance in the realm of digital text as it serves to indicate direction, primarily rightward movement or progression. This glyph is often employed in contexts where arrows are needed to guide users through processes or systems, particularly in programming, flowcharts, and algorithms. The RIGHTWARDS DOUBLE ARROW symbolizes a sequence of actions moving from one state to another, making it an essential tool for explaining logic and operations in various disciplines such as computer science, engineering, mathematics, and even some aspects of social sciences. Its usage ensures clarity and precision, enabling individuals to navigate through complex systems with ease. The character is a vital element in the world of digital text, helping to maintain consistency and coherence across languages, cultures, and technical contexts.

How to type the symbol on Windows

Hold Alt and type 8658 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+21D2. 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+21D2 to binary: 00100001 11010010. 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 10000111 10010010