APL FUNCTIONAL SYMBOL SQUISH QUAD·U+2337

Character Information

Code Point
U+2337
HEX
2337
Unicode Plane
Basic Multilingual Plane
Category
Other Symbol

Character Representations

Click elements to copy
EncodingHexBinary
UTF8
E2 8C B7
11100010 10001100 10110111
UTF16 (big Endian)
23 37
00100011 00110111
UTF16 (little Endian)
37 23
00110111 00100011
UTF32 (big Endian)
00 00 23 37
00000000 00000000 00100011 00110111
UTF32 (little Endian)
37 23 00 00
00110111 00100011 00000000 00000000
HTML Entity
⌷
URI Encoded
%E2%8C%B7

Description

The U+2337 character, known as the APL FUNCTIONAL SYMBOL SQUISH QUAD, is a typographical symbol that serves a specific role in digital text. It is primarily used within the context of the APL programming language, which stands for "A Programming Language." APL was developed by Charles H. Wilkes and his team at Harvard University as an interactive mathematical notation system for scientific computing and statistical analysis. The U+2337 character, or APL FUNCTIONAL SYMBOL SQUISH QUAD, is a part of the APL Functional Notation set which was designed to make complex mathematical operations more accessible and intuitive. This symbol represents a "Squish" operation, which denotes the act of collapsing or combining two matrices or arrays along their subscript dimensions in APL programming. The use of this character and other similar symbols in APL programming reflects the language's unique approach to mathematical computation and its strong emphasis on concise, efficient expression of complex operations.

How to type the symbol on Windows

Hold Alt and type 9015 on the numpad. Or use Character Map.

  1. Step 1: Determine the UTF-8 encoding bit layout

    The character has the Unicode code point U+2337. In UTF-8, it is encoded using 3 bytes because its codepoint is in the range of 0x0800 to 0xffff.

    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 the x are the payload bits.

    UTF-8 Encoding bit layout by codepoint range
    Codepoint RangeBytesBit patternPayload length
    U+0000 - U+007F10xxxxxxx7 bits
    U+0080 - U+07FF2110xxxxx 10xxxxxx11 bits
    U+0800 - U+FFFF31110xxxx 10xxxxxx 10xxxxxx16 bits
    U+10000 - U+10FFFF411110xxx 10xxxxxx 10xxxxxx 10xxxxxx21 bits
  2. Step 2: Obtain the payload bits:

    Convert the hexadecimal code point U+2337 to binary: 00100011 00110111. Those are the payload bits.

  3. 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 10001100 10110111