# cosine function

## cosine function

[′kō‚sīn ‚fəŋk·shən]
(mathematics)
In a right triangle with an angle θ, the cosine function gives the ratio of adjacent side to hypotenuse; more generally, it is the function which assigns to any real number θ the abscissa of the point on the unit circle obtained by moving from (1,0) counterclockwise θ units along the circle, or clockwise |θ| units if θ is less than 0. Denoted cos.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
Brushless Direct Current (BLDC) motor on the pedelec with the aid of worm gear and motor connection axle, connected to the pedal axle in order to mimic the cosine function observed in human torque contribution is aimed at achieving superlative velocity.
In order to overcome some disadvantages in the definition of cosine similarity measure, Ye  proposed 'improved cosine similarity measures' based on cosine function. Biswas et al.
For a single-scale nonperiodic indenter (Figure 3(a)) the Hertz solution is observed, as the cosine function is very close to the quadratic parabola.
This time shifting is most conveniently accomplished when the cosine function is used because its maximum value is achieved when the angle on which it operates is zero.
By considering tadpole diagrams in Figure 1, the cosine function is renormalized to
Furthermore, Ye  proposed the improved cosine similarity measures of SVNSs and IVNSs based on cosine function.
In the basic sine-cosine algorithm, the simple variation of sine and cosine function values is used to achieve the optimization search.
cosh(x) is the hyperbolic cosine function. After that, we can get the speckle by performing the fast Fourier transform of the resulting matrix.
The cosine function is applied to the period of T3 and T4 which are close to characteristic BP points.
The cosine function describing the out-of-plane deflection automatically satisfies the boundary conditions for plate, at x = 0, x = a and y = 0, y = b respectively.
The reason to choose the sine function instead of the cosine function here is arbitrary, but with no difference, since the sine and cosine functions are different by a phase difference of [pi]/2, they may represent the same physical wave.
In this paper, we have defined rough neutrosophic hyper-complex set and rough neutrosophic hyper-complex cosine function (RNHCF).

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