Spherical Angle Symbol
∢ denotes a spherical angle, commonly used in mathematical and geometry notation.
U+2222
The symbol ∢ (Unicode U+2222) is known as the spherical angle. It’s mainly used in mathematical contexts to indicate an angle on a sphere. You can copy it directly or insert it using standard Unicode escapes.
Spherical Angle Symbol Meaning
∢ is the Unicode character named “SPHERICAL ANGLE” (U+2222). It is typically used to represent an angle between directions measured on the surface of a sphere, as opposed to a planar angle. In practice, it may appear in spherical trigonometry, geodesy, navigation-related formulas, and any notation where angles are defined through spherical geometry. When writing or typesetting, the exact interpretation depends on the surrounding symbols and variables, but the intent is consistently about an angle associated with spherical measurement. Use it when your equation or diagram specifically describes spherical rather than flat (Euclidean) angles.
Common uses
- •Labeling spherical angles in geometry and trigonometry notes
- •Annotating variables in spherical trigonometry equations
- •Writing documentation for navigation, bearings, or geodesic calculations
- •Indicating an angular measure on a sphere in technical diagrams
- •Using as a typographic symbol in STEM articles and presentations
Examples
∢ Spherical Angle Symbol
- ∢The spherical angle ∢ is given by the measured arc on the sphere.
- ∢Compute ∢ using spherical trigonometry relationships.
- ∢Let ∢ represent the angle between two great-circle directions.
- ∢In the diagram, the angle marked ∢ is the spherical measure.
- ∢We denote the required spherical angle as ∢ for the formula.
Variations
Ready to copy
Technical codes
| Unicode | U+2222 | |
| HTML Entity | ∢ | |
| HTML Code | ∢ | |
| CSS | \2222 |
FAQ
What is the Unicode name of ∢?
The Unicode name is “SPHERICAL ANGLE” for code point U+2222.
How do I copy ∢ for use in HTML?
You can use the HTML entity: ∢.
How can I include ∢ in CSS?
Use the CSS escape: \\2222.
What does ∢ mean in math notation?
It denotes a spherical angle—an angle defined in spherical geometry, often in spherical trigonometry or related fields.