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n. In a right triangle, the ratio of the length of the side adjacent to an acute angle to the length of the hypotenuse.

n. The abscissa at the endpoint of an arc of a unit circle centered at the origin of a Cartesian coordinate system, the arc being of length x and measured counterclockwise from the point (1, 0) if x is positive or clockwise if x is negative.

n. In a right triangle, the ratio of the length of the side adjacent to an acute angle to the length of the hypotenuse. Symbol: cos

n. The sine of the complement of an arc or angle. See Illust. of functions.

n. In trigonom., the sine of the complement of a given angle (whose cosine it is).

n. ratio of the adjacent side to the hypotenuse of a right-angled triangle

"Measuring Relational Similarity with VSM  The measure of similrity of R1 and R2 is given by the cosine of the angle Ɵ between r1 and r2: cosine  = ∑ r1, i. r2, i = r1. r2 = r1. r2"

trigonometric function    circular function   

hyperbolic cosine    cosine integral    tangent    trigonometry    secant    power series   

sine    arccosine   

functions   

cotangent    sawtooth    cepstrum    5    wavelet    trigonometric    profit/loss    affine    wideband    logarithm