Step 1: Determine the UTF-8 encoding bit layout
The character ⍝ has the Unicode code point U+235D. 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+235D to binary:
00100011 01011101. 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 10011101
APL FUNCTIONAL SYMBOL UP SHOE JOT·U+235D
⍝
Character Information
Code Point
U+235D
HEX
235D
Unicode Plane
Basic Multilingual Plane
Category
Other Symbol
Character Representations
Click elements to copy| Encoding | Hex | Binary |
|---|---|---|
| UTF8 | E2 8D 9D | 11100010 10001101 10011101 |
| UTF16 (big Endian) | 23 5D | 00100011 01011101 |
| UTF16 (little Endian) | 5D 23 | 01011101 00100011 |
| UTF32 (big Endian) | 00 00 23 5D | 00000000 00000000 00100011 01011101 |
| UTF32 (little Endian) | 5D 23 00 00 | 01011101 00100011 00000000 00000000 |
HTML Entity
⍝
URI Encoded
%E2%8D%9D
Description
The Unicode character U+235D, also known as the APL Functional Symbol Up Shoe Jot (), plays a significant role in digital typography, particularly within the realm of the extended APL (A Programming Language) character set. This symbol represents an upward pointing shoelace, which is used to denote various mathematical operations and functions in APL programming. Its typical usage is in the context of mathematical expressions and algorithms, where it signifies a specific function or operation within the computational framework of APL. Despite its obscure nature, the Up Shoe Jot is an essential element for those working with APL, a language known for its concise and efficient syntax.
How to type the ⍝ symbol on Windows
Hold Alt and type 9053 on the numpad. Or use Character Map.