APL FUNCTIONAL SYMBOL QUAD CIRCLE·U+233C

Character Information

Code Point
U+233C
HEX
233C
Unicode Plane
Basic Multilingual Plane
Category
Other Symbol

Character Representations

Click elements to copy
EncodingHexBinary
UTF8
E2 8C BC
11100010 10001100 10111100
UTF16 (big Endian)
23 3C
00100011 00111100
UTF16 (little Endian)
3C 23
00111100 00100011
UTF32 (big Endian)
00 00 23 3C
00000000 00000000 00100011 00111100
UTF32 (little Endian)
3C 23 00 00
00111100 00100011 00000000 00000000
HTML Entity
⌼
URI Encoded
%E2%8C%BC

Description

The Unicode character U+233C, also known as APL FUNCTIONAL SYMBOL QUAD CIRCLE, is a specialized mathematical symbol primarily used in the field of applied mathematics and computer science. This particular character plays a crucial role in digital text by providing a clear visual representation for quadratic functions within equations and algorithms. Its unique quad-circle design enables it to efficiently convey complex mathematical concepts to both readers and computers alike, making it an indispensable tool for mathematicians, computer scientists, and engineers. Despite its niche usage, the APL FUNCTIONAL SYMBOL QUAD CIRCLE has become a widely recognized symbol in various technical contexts, demonstrating the power of standardized typography and Unicode to enhance communication across different fields and cultures.

How to type the symbol on Windows

Hold Alt and type 9020 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+233C. 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+233C to binary: 00100011 00111100. 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 10111100