U+2222 Spherical Angle
U+2222 was added in Unicode version 1.1 in 1993. It belongs to the block
This character is a Math Symbol and is commonly used, that is, in no specific script. The character is also known as angle arc.
The glyph is not a composition. It has no designated width in East Asian texts. In bidirectional text it acts as Other Neutral. When changing direction it is mirrored into
The Wikipedia has the following information about this codepoint:
In Euclidean geometry, an angle is the figure formed by two rays, called the sides of the angle, sharing a common endpoint, called the vertex of the angle. Angles formed by two rays are also known as plane angles as they lie in the plane that contains the rays. Angles are also formed by the intersection of two planes; these are called dihedral angles. Two intersecting curves may also define an angle, which is the angle of the rays lying tangent to the respective curves at their point of intersection.
The magnitude of an angle is called an angular measure or simply "angle". Angle of rotation is a measure conventionally defined as the ratio of a circular arc length to its radius, and may be a negative number. In the case of a geometric angle, the arc is centered at the vertex and delimited by the sides. In the case of a rotation, the arc is centered at the center of the rotation and delimited by any other point and its image by the rotation.
Representations
System  Representation 

Nº  8738 
UTF8  E2 88 A2 
UTF16  22 22 
UTF32  00 00 22 22 
URLQuoted  %E2%88%A2 
HTML hex reference  ∢ 
Wrong windows1252 Mojibake  âˆ¢ 
HTML named entity  ∢ 
alias  angle arc 
L^{A}T_{E}X  \sphericalangle 
Related Characters
Elsewhere
Complete Record
Property  Value 

1.1 (1993)  
SPHERICAL ANGLE  
—  
Mathematical Operators  
Math Symbol  
Common  
Other Neutral  
Not Reordered  
none  


✘  




✘  










✘  
✘  
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✘  
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Any  
✔  
✘  
✘  
✘  
✘  
✘  
✘  
✘  
✘  
0  
0  
0  
✘  
None  
—  
NA  
Other  
—  
✘  
✘  
✔  
✘  
Yes  
Yes  


Yes  


Yes  
✘  
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Other  
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Other  
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None  
neutral  
Not Applicable  
—  
No_Joining_Group  
Non Joining  
Alphabetic  
none  
not a number  


R 