Step 1: Determine the UTF-8 encoding bit layout
The character ↑ has the Unicode code point U+2191. In UTF-8, it is encoded using 3 bytes because its codepoint is in the range of
0x0800to0xffff.
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 thexare 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+2191 to binary:
00100001 10010001. 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 10010001
UPWARDS ARROW·U+2191
↑
Character Information
Code Point
U+2191
HEX
2191
Unicode Plane
Basic Multilingual Plane
Category
Math Symbol
Character Representations
Click elements to copy| Encoding | Hex | Binary |
|---|---|---|
| UTF8 | E2 86 91 | 11100010 10000110 10010001 |
| UTF16 (big Endian) | 21 91 | 00100001 10010001 |
| UTF16 (little Endian) | 91 21 | 10010001 00100001 |
| UTF32 (big Endian) | 00 00 21 91 | 00000000 00000000 00100001 10010001 |
| UTF32 (little Endian) | 91 21 00 00 | 10010001 00100001 00000000 00000000 |
HTML Entity
↑
URI Encoded
%E2%86%91
Description
The Unicode character U+2191, known as the "UPWARDS ARROW," plays a significant role in digital text by serving as a symbol for direction. Typically used to indicate an upward movement or trend, this character is frequently employed in mathematical and scientific expressions, diagrams, and flowcharts. In these contexts, the UPWARDS ARROW assists readers in understanding complex relationships between elements. The character also appears in programming languages and markup languages like HTML, where it's used to create hyperlinks or denote directional movements in algorithms. Though the UPWARDS ARROW is relatively straightforward in its function, it contributes significantly to clarity and comprehension across various digital texts and applications.
How to type the ↑ symbol on Windows
Hold Alt and type 8593 on the numpad. Or use Character Map.