Step 1: Determine the UTF-8 encoding bit layout
The character ⇥ has the Unicode code point U+21E5. 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+21E5 to binary:
00100001 11100101
. 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 10000111 10100101
RIGHTWARDS ARROW TO BAR·U+21E5
Character Information
Character Representations
Click elements to copyEncoding | Hex | Binary |
---|---|---|
UTF8 | E2 87 A5 | 11100010 10000111 10100101 |
UTF16 (big Endian) | 21 E5 | 00100001 11100101 |
UTF16 (little Endian) | E5 21 | 11100101 00100001 |
UTF32 (big Endian) | 00 00 21 E5 | 00000000 00000000 00100001 11100101 |
UTF32 (little Endian) | E5 21 00 00 | 11100101 00100001 00000000 00000000 |
Description
The Unicode character U+21E5, known as the RIGHTWARDS ARROW TO BAR, is a symbol used predominantly in mathematics and computer science for denoting various operations and relationships in digital text. In mathematical expressions, it is often utilized to represent an operation called "box-right" or "box minus," where it indicates the difference between two boxed numbers or expressions. This symbol is particularly useful when solving word problems or working with algebraic equations that involve differences. Its role extends beyond mathematics into other technical contexts, such as programming languages, where it can signify various operations like bitwise negation and logical not. Despite its limited use in everyday language, the RIGHTWARDS ARROW TO BAR plays a crucial role in digital text for conveying precise mathematical concepts and technical information.
How to type the ⇥ symbol on Windows
Hold Alt and type 8677 on the numpad. Or use Character Map.