Step 1: Determine the UTF-8 encoding bit layout
The character ⍰ has the Unicode code point U+2370. 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+2370 to binary:
00100011 01110000. 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 10110000
APL FUNCTIONAL SYMBOL QUAD QUESTION·U+2370
⍰
Character Information
Code Point
U+2370
HEX
2370
Unicode Plane
Basic Multilingual Plane
Category
Other Symbol
Character Representations
Click elements to copy| Encoding | Hex | Binary |
|---|---|---|
| UTF8 | E2 8D B0 | 11100010 10001101 10110000 |
| UTF16 (big Endian) | 23 70 | 00100011 01110000 |
| UTF16 (little Endian) | 70 23 | 01110000 00100011 |
| UTF32 (big Endian) | 00 00 23 70 | 00000000 00000000 00100011 01110000 |
| UTF32 (little Endian) | 70 23 00 00 | 01110000 00100011 00000000 00000000 |
HTML Entity
⍰
URI Encoded
%E2%8D%B0
Description
The Unicode character U+2370 represents the "APL FUNCTIONAL SYMBOL QUAD QUESTION" in digital text. This symbol is primarily used within the programming language APL (A Programming Language), which was developed by Kenneth E. Iverson in 1965. In APL, symbols such as U+2370 are utilized to denote specific mathematical and logical operations. Due to its unique role in APL, this character has gained a niche following among programmers and mathematicians who use the language for complex calculations and data analysis. While not widely recognized outside of these specialized fields, the U+2370 symbol plays an essential part in facilitating efficient and precise communication among those familiar with APL's syntax and semantics.
How to type the ⍰ symbol on Windows
Hold Alt and type 9072 on the numpad. Or use Character Map.