trigonometric function

(redirected from Trig functions)
Also found in: Thesaurus, Encyclopedia.
click for a larger image
trigonometric function
In a right triangle, the three main trigonometric functions are
sine θ = opposite / hypotenuse
cosine θ = adjacent / hypotenuse
tangent θ = opposite / adjacent.

trigonometric function

n.
A function of an angle expressed as the ratio of two of the sides of a right triangle that contains that angle; the sine, cosine, tangent, cotangent, secant, or cosecant. Also called circular function.

trigonometric function

n
1. (Mathematics) 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. (Mathematics) any function containing only sines, cosines, etc, and constants

trig′onomet′ric func′tion


n.
a function of an angle, as the sine or cosine, expressed as the ratio of the sides of a right triangle.
Also called circular function.
[1905–10]
click for a larger image
trigonometric function
In a right triangle, the trigonometric functions are: sine θ = opposite/hypothenuse cosine θ = adjacent/hypothenuse tangent θ = opposite/adjacent

trig·o·no·met·ric 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.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.trigonometric function - function of an angle expressed as a ratio of the length of the sides of right-angled triangle containing the angletrigonometric function - function of an angle expressed as a ratio of the length of the sides of right-angled triangle containing the angle
function, mapping, mathematical function, single-valued function, map - (mathematics) a mathematical relation such that each element of a given set (the domain of the function) is associated with an element of another set (the range of the function)
sine, sin - ratio of the length of the side opposite the given angle to the length of the hypotenuse of a right-angled triangle
arc sine, arcsin, arcsine, inverse sine - the inverse function of the sine; the angle that has a sine equal to a given number
cos, cosine - ratio of the adjacent side to the hypotenuse of a right-angled triangle
arc cosine, arccos, arccosine, inverse cosine - the inverse function of the cosine; the angle that has a cosine equal to a given number
tangent, tan - ratio of the opposite to the adjacent side of a right-angled triangle
arc tangent, arctan, arctangent, inverse tangent - the inverse function of the tangent; the angle that has a tangent equal to a given number
cotan, cotangent - ratio of the adjacent to the opposite side of a right-angled triangle
arc cotangent, arccotangent, inverse cotangent - the inverse function of the cotangent; the angle that has a cotangent equal to a given number
sec, secant - ratio of the hypotenuse to the adjacent side of a right-angled triangle
arc secant, arcsec, arcsecant, inverse secant - the inverse function of the secant; the angle that has a secant equal to a given number
cosec, cosecant - ratio of the hypotenuse to the opposite side of a right-angled triangle
arc cosecant, arccosecant, inverse cosecant - the angle that has a cosecant equal to a given number
References in periodicals archive ?
Many of these are statistical, engineering and trig Functions, but the ones that personally interest me the most: are:
The ones with trig functions saved looking data up in math tables.
This method is easy to use as long as the individual understands trig functions and has a calculator equipped with these functions.
Many helpful features and tools, including: job notepad, estimating tool to track cycle times, trig functions and help files.
Also called symbolic manipulators, these products factor polynomials and derivatives as easily as calculators perform square root and trig functions.