Trigonometric Function (Noun)
Meaning
Function of an angle expressed as a ratio of the length of the sides of right-angled triangle containing the angle.
Classification
Nouns denoting relations between people or things or ideas.
Examples
- Trigonometric functions are used to describe the relationships between the angles and side lengths of triangles.
- The sine, cosine, and tangent are the most common trigonometric functions used in mathematics and physics.
- Trigonometric functions are used to model periodic phenomena, such as sound waves and light waves.
- In calculus, the derivatives of trigonometric functions are used to model the rates at which the angles and side lengths of triangles change.
- The unit circle is used to define the trigonometric functions in terms of the ratios of the coordinates of a point on the circle.