trigonometric function | |
—n | |
1. | Also called: circular function any of a group of functions of an angle expressed as a ratio of two of the sides of a right-angled triangle containing the angle. The group includes sine, cosine, tangent, secant, cosecant, and cotangent |
2. | any function containing only sines, cosines, etc, and constants |
trigonometric function (trĭg'ə-nə-mět'rĭk) Pronunciation Key
(click for larger image in new window) A function of an angle, as the sine, cosine, or tangent, whose value is expressed as a ratio of two of the sides of the right triangle that contains the angle. |