APL FUNCTIONAL SYMBOL QUAD UPWARDS ARROW·U+2350

Character Information

Code Point
U+2350
HEX
2350
Unicode Plane
Basic Multilingual Plane
Category
Other Symbol

Character Representations

Click elements to copy
EncodingHexBinary
UTF8
E2 8D 90
11100010 10001101 10010000
UTF16 (big Endian)
23 50
00100011 01010000
UTF16 (little Endian)
50 23
01010000 00100011
UTF32 (big Endian)
00 00 23 50
00000000 00000000 00100011 01010000
UTF32 (little Endian)
50 23 00 00
01010000 00100011 00000000 00000000
HTML Entity
⍐
URI Encoded
%E2%8D%90

Description

The Unicode character U+2350 is the APL Functional Symbol Quad Upwards Arrow, a mathematical symbol used primarily in computer typography. It is part of the Extended-Pictographic Unicode block and was added to the Unicode standard in 1991. This character is not commonly seen in everyday digital text, but it serves an important role in applied mathematics and computer science, particularly in the APL programming language. In these contexts, the symbol is used to denote a directional function or operation, such as in matrices and other linear algebra applications, where it indicates that the operation should be performed in an upward or rightward direction. Despite its relatively niche usage, the APL Functional Symbol Quad Upwards Arrow plays a vital role in specialized mathematical and computational fields.

How to type the symbol on Windows

Hold Alt and type 9040 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+2350. 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+2350 to binary: 00100011 01010000. 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 10010000