APL FUNCTIONAL SYMBOL CIRCLE UNDERBAR·U+235C

Character Information

Code Point
U+235C
HEX
235C
Unicode Plane
Basic Multilingual Plane
Category
Other Symbol

Character Representations

Click elements to copy
EncodingHexBinary
UTF8
E2 8D 9C
11100010 10001101 10011100
UTF16 (big Endian)
23 5C
00100011 01011100
UTF16 (little Endian)
5C 23
01011100 00100011
UTF32 (big Endian)
00 00 23 5C
00000000 00000000 00100011 01011100
UTF32 (little Endian)
5C 23 00 00
01011100 00100011 00000000 00000000
HTML Entity
⍜
URI Encoded
%E2%8D%9C

Description

The Unicode character U+235C, APL Functional Symbol Circle Underscore, is a specialized typographical symbol used primarily within the context of digital text related to the Algorithmic Language Programming (APL) domain. This symbol finds its origins in the APL language developed by Sir Christopher Strachey and Kenneth E. Iverson, which was designed for scientific computation and mathematical expression. In APL programming, the character is employed as a functional indicator, signaling the presence of a function within an expression or code block. It plays a pivotal role in denoting scoping levels, creating anonymous functions, and providing syntactical clarity to users familiar with APL's unique notation system. Despite its niche usage within the realm of APL programming, U+235C serves as a testament to the rich diversity of typographical symbols available within Unicode for specific applications and contexts.

How to type the symbol on Windows

Hold Alt and type 9052 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+235C. 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+235C to binary: 00100011 01011100. 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 10001101 10011100