Step 1: Determine the UTF-8 encoding bit layout
The character ⍗ has the Unicode code point U+2357. 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+2357 to binary:
00100011 01010111. 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 10001101 10010111
APL FUNCTIONAL SYMBOL QUAD DOWNWARDS ARROW·U+2357
⍗
Character Information
Code Point
U+2357
HEX
2357
Unicode Plane
Basic Multilingual Plane
Category
Other Symbol
Character Representations
Click elements to copy| Encoding | Hex | Binary |
|---|---|---|
| UTF8 | E2 8D 97 | 11100010 10001101 10010111 |
| UTF16 (big Endian) | 23 57 | 00100011 01010111 |
| UTF16 (little Endian) | 57 23 | 01010111 00100011 |
| UTF32 (big Endian) | 00 00 23 57 | 00000000 00000000 00100011 01010111 |
| UTF32 (little Endian) | 57 23 00 00 | 01010111 00100011 00000000 00000000 |
HTML Entity
⍗
URI Encoded
%E2%8D%97
Description
U+2357, also known as the APL Functional Symbol Quad Downwards Arrow, is a specialized character in the Unicode standard that serves a specific purpose within digital text. Primarily used in the context of the programming language APL (A Programming Language), this symbol represents a quad downwards arrow. This particular arrow signifies the function of application or operation in APL, which is known for its concise syntax and high-level abstraction that relies heavily on array operations and functions. The use of this character can be traced back to the language's creation by Charles Wheelwright and Adam Howard in the 1960s, as a means to simplify complex mathematical computations and operations. In modern digital text, U+2357 is predominantly seen within APL programming, where it plays an essential role in conveying the flow of function application and operator precedence.
How to type the ⍗ symbol on Windows
Hold Alt and type 9047 on the numpad. Or use Character Map.