Step 1: Determine the UTF-8 encoding bit layout
The character ⟺ has the Unicode code point U+27FA. 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+27FA to binary:
00100111 11111010
. 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 10011111 10111010
LONG LEFT RIGHT DOUBLE ARROW·U+27FA
Character Information
Character Representations
Click elements to copyEncoding | Hex | Binary |
---|---|---|
UTF8 | E2 9F BA | 11100010 10011111 10111010 |
UTF16 (big Endian) | 27 FA | 00100111 11111010 |
UTF16 (little Endian) | FA 27 | 11111010 00100111 |
UTF32 (big Endian) | 00 00 27 FA | 00000000 00000000 00100111 11111010 |
UTF32 (little Endian) | FA 27 00 00 | 11111010 00100111 00000000 00000000 |
Description
The Unicode character U+27FA is known as the "Long Left Right Double Arrow" and serves a unique role in digital text communication. This symbol is not commonly used in everyday writing but can be found in technical contexts, particularly in computer science or mathematics. It represents an arrow that points to both the left and right simultaneously and is often utilized in visual depictions of algorithms or logical processes where a step must consider multiple paths at once. While this character doesn't carry any cultural or linguistic significance on its own, it plays a vital role in certain programming languages and mathematical notations. Its primary usage lies in indicating the range or boundaries within which a variable can exist, like when defining an interval in sorting algorithms or calculating absolute values. It is also employed in diagrams to show transitions between multiple states or directions. In terms of technical context, the Long Left Right Double Arrow symbol helps make code and equations more readable by visually illustrating logical operations or data movement direction. However, since this character isn't typically used in everyday writing, it might not be recognized by all users, making it less accessible for general communication purposes. Despite this limitation, the Unicode character U+27FA remains a valuable tool in specific technical and mathematical scenarios where its dual-directional nature is required to convey precise information.
How to type the ⟺ symbol on Windows
Hold Alt and type 10234 on the numpad. Or use Character Map.