Step 1: Determine the UTF-8 encoding bit layout
The character ↞ has the Unicode code point U+219E. In UTF-8, it is encoded using 3 bytes because its codepoint is in the range of
0x0800
to0xffff
.
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 thex
are the payload bits.UTF-8 Encoding bit layout by codepoint range Codepoint Range Bytes Bit pattern Payload length U+0000 - U+007F 1 0xxxxxxx 7 bits U+0080 - U+07FF 2 110xxxxx 10xxxxxx 11 bits U+0800 - U+FFFF 3 1110xxxx 10xxxxxx 10xxxxxx 16 bits U+10000 - U+10FFFF 4 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx 21 bits Step 2: Obtain the payload bits:
Convert the hexadecimal code point U+219E to binary:
00100001 10011110
. Those are the payload bits.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 10000110 10011110
LEFTWARDS TWO HEADED ARROW·U+219E
Character Information
Character Representations
Click elements to copyEncoding | Hex | Binary |
---|---|---|
UTF8 | E2 86 9E | 11100010 10000110 10011110 |
UTF16 (big Endian) | 21 9E | 00100001 10011110 |
UTF16 (little Endian) | 9E 21 | 10011110 00100001 |
UTF32 (big Endian) | 00 00 21 9E | 00000000 00000000 00100001 10011110 |
UTF32 (little Endian) | 9E 21 00 00 | 10011110 00100001 00000000 00000000 |
Description
The Unicode character U+219E, also known as the Leftwards Two-Headed Arrow, is a symbol with a unique role in digital text. Its primary function is to represent a bidirectional flow or transformation from one point to another. Typically used in mathematical equations and scientific notations, this character serves as an indicator of reversible processes or reactions. In programming and engineering contexts, it's also employed to illustrate data flows in reverse order or to denote the inverse of operations. It is particularly useful in fields such as physics, chemistry, engineering, and computer science where bidirectional transformations are commonplace. There is no significant cultural, linguistic, or technical context for this character beyond its functional use within these specific disciplines.
How to type the ↞ symbol on Windows
Hold Alt and type 8606 on the numpad. Or use Character Map.