Step 1: Determine the UTF-8 encoding bit layout
The character ⍘ has the Unicode code point U+2358. 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+2358 to binary:
00100011 01011000
. 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 10011000
APL FUNCTIONAL SYMBOL QUOTE UNDERBAR·U+2358
Character Information
Character Representations
Click elements to copyEncoding | Hex | Binary |
---|---|---|
UTF8 | E2 8D 98 | 11100010 10001101 10011000 |
UTF16 (big Endian) | 23 58 | 00100011 01011000 |
UTF16 (little Endian) | 58 23 | 01011000 00100011 |
UTF32 (big Endian) | 00 00 23 58 | 00000000 00000000 00100011 01011000 |
UTF32 (little Endian) | 58 23 00 00 | 01011000 00100011 00000000 00000000 |
Description
The Unicode character U+2358 is known as the "APL Functional Symbol Quote Underbar" and serves a specific role in digital text, primarily within the field of APL (A Programming Language) programming. APL is a high-level, array programming language developed by Charles H. Laurence and Adam A. Peters in 1962 at the University of Toronto. This unique character, the APL Functional Symbol Quote Underbar, provides an essential function within this language system. It is utilized as a delimiter, demarcating the boundaries of expressions within a larger text sequence. By acting as a functional symbol rather than a literal one, it allows for the efficient and concise representation of complex mathematical, statistical, or scientific concepts in programming code. While this character may not have widespread use beyond the realm of APL, it remains a critical tool for those working within its niche domain, highlighting the importance of Unicode's broad scope and adaptability to accommodate diverse typographical needs across languages and fields.
How to type the ⍘ symbol on Windows
Hold Alt and type 9048 on the numpad. Or use Character Map.