Also called circular function. a function of an angle, as sine or cosine, expressed as the ratio of the sides of a right triangle.
any function involving only trigonometric functions and constants.
the generalization of these to functions of real or complex numbers.
Present, Past, And Sometimes Perfect ParticiplesParticiples are words derived from verbs that can function as adjectives or as parts of verb phrases to create verb tenses. The two main types of participles are the present participle and the past participle. The perfect participle depends on the past participle for its forms. Participial phrases function as adjectives that modify the subjects or other nouns in sentences. The Present Participle Adding -ing …
What Are Gerunds?A gerund is a verb form that ends in -ing and functions as a noun or object in a sentence or phrase. Though a gerund may look like a verb, it doesn’t behave like one in a sentence. A gerund can act as the subject of a sentence, as the object of a preposition, or as the object of a verb. When a gerund has …
Origin of trigonometric function
First recorded in 1905–10
Also called trig function (for defs 1, 2).
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
British Dictionary definitions for trig function
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
any function containing only sines, cosines, etc, and constants
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Science definitions for trig function
[ trĭg′ə-nə-mĕt′rĭk ]
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.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.