APL FUNCTIONAL SYMBOL QUAD·U+2395

Character Information

Code Point
U+2395
HEX
2395
Unicode Plane
Basic Multilingual Plane
Category
Other Symbol

Character Representations

Click elements to copy
EncodingHexBinary
UTF8
E2 8E 95
11100010 10001110 10010101
UTF16 (big Endian)
23 95
00100011 10010101
UTF16 (little Endian)
95 23
10010101 00100011
UTF32 (big Endian)
00 00 23 95
00000000 00000000 00100011 10010101
UTF32 (little Endian)
95 23 00 00
10010101 00100011 00000000 00000000
HTML Entity
⎕
URI Encoded
%E2%8E%95

Description

The Unicode character U+2395, also known as the APL Functional Symbol Quad, is a mathematical symbol used primarily in the field of applied mathematics and computer science. Its primary role in digital text is to denote a specific operation or function within algorithms, particularly those related to the programming language APL (A Programming Language). This character provides a concise and precise way to represent complex operations that might otherwise require lengthy explanations in standard textual notation. While U+2395 does not have any direct cultural or linguistic significance, its usage is significant within specific technical contexts, where it helps to streamline the representation of mathematical concepts and algorithms. In summary, U+2395 plays a crucial role in digital text related to applied mathematics and computer science, particularly within APL programming, by providing an efficient means of representing complex operations.

How to type the symbol on Windows

Hold Alt and type 9109 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+2395. 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+2395 to binary: 00100011 10010101. 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 10001110 10010101