unit circle
The 'unit circle' is essential in mathematics, especially for understanding trigonometric functions and periodic behavior.
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Definition
B2Geometry
(technical, academic)A circle with a radius of one, usually centered at the origin in a coordinate system.
Example
- In geometry class, we learned about the properties of the unit circle.
B2Trigonometry
(technical, academic)A circle with a radius of one, centered at the origin, used to define sine, cosine, and tangent functions.
Example
- The unit circle helps in understanding the values of trigonometric functions at various angles.
Similar
Terms that have similar or relatively close meanings to "unit circle":