SQUARE ORIGINAL OF·U+2290

Character Information

Code Point
U+2290
HEX
2290
Unicode Plane
Basic Multilingual Plane
Category
Math Symbol

Character Representations

Click elements to copy
EncodingHexBinary
UTF8
E2 8A 90
11100010 10001010 10010000
UTF16 (big Endian)
22 90
00100010 10010000
UTF16 (little Endian)
90 22
10010000 00100010
UTF32 (big Endian)
00 00 22 90
00000000 00000000 00100010 10010000
UTF32 (little Endian)
90 22 00 00
10010000 00100010 00000000 00000000
HTML Entity
⊐
URI Encoded
%E2%8A%90

Description

The Unicode character U+2290, also known as "SQUARE ORIGINAL OF", is a typographic symbol used in digital text to represent the square root of an original value. It plays a vital role in mathematical equations and calculations, particularly in the field of engineering and physical sciences. This character offers an easy way to differentiate between the square root of a number and the original or actual value itself. Though it might seem like a small detail, its accurate use is essential for clarity and precision in complex mathematical expressions. While U+2290 does not have any direct cultural or linguistic significance, its presence in digital text ensures that information is conveyed accurately and effectively, contributing to the advancement of various fields such as computing, physics, engineering, and more.

How to type the symbol on Windows

Hold Alt and type 8848 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+2290. 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+2290 to binary: 00100010 10010000. 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 10001010 10010000