Math Operator 31

Unicode
U+2222
Category
Math
HTML Entity
∢
CSS
\2222
The ∢ (Spherical Angle) symbol is a mathematical operator used to represent an angle formed by the intersection of two great circles on the surface of a sphere. In the Unicode standard, it sits alongside other geometric symbols to help typeset complex equations. While you won't see it much on social media, it is essential for mathematicians, astronomers, and navigators working with spherical geometry.

How to Type

Windows
Alt+8738 or type 2222 then Alt+X in Word
macOS
Control+Command+Space then search 'spherical angle'
Linux
Ctrl+Shift+U then 2222
HTML
&angsp; or ∢

In Programming

In programming and technical documentation, this symbol is primarily used in LaTeX (via the \sphericalangle command) or Unicode-supported rendering engines for displaying spherical geometry formulas.

Tags

3D geometry symbol astronomy symbol geometry great circle angle mathematics navigation math solid angle space sphere geometry spherical angle spherical trigonometry

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