Sine Wave

(redirected from Sinusoidal function)
Also found in: Dictionary, Thesaurus, Medical, Encyclopedia.

Sine Wave

Any curve plotted along an axis where the y-value moves above and below zero at a rate of y = sin(x). The Composite Index of Lagging Indicators is thought to be roughly a sine wave because interest rates and inflation, which make up the index, move in relation to each other in a way resembling the sine.
References in periodicals archive ?
The parameters in the sinusoidal function were estimated when L was maximized with a nonlinear fit using the Newton algorithm (Neter et al.
In this part, the teacher discusses, in detail, the critical components of the sinusoidal function such as amplitude, period, horizontal, and vertical shift, and how these quantities can be identified and measured in the experiment.
The changes of output mass flow rate and weight fraction of additive fed from the second feeder with time for various time dependent input modes such as step function and sinusoidal function inputs into the second feeder and other ports part way along the length of the machine were analyzed.
As shown in Figure 3e and f, the orientation rate appears to be a sinusoidal function of the orientation angle; although data from larvae fitted less closely to Equation 11 than did those from Paramecium, this was probably due to the uncertainty in measuring the orientation angle of the larvae.
where k is the declining coefficient of the Sinusoidal function set as 9 x [10.sup.-6] and [f.sub.0] is the prime frequency of the ultrasonic transducer set as 5 x [10.sup.6] Hz.
A typical solution for resolving this problem is usage of look-in tables [4], in which are memorized samples of the sinusoidal function with n discrete values, while the number of discrete values is equal to the wanted module of the divider.
The changes of output flow rate with time (surging) are predicted for various time dependent input modes such as step function and sinusoidal function inputs into the hopper and other ports part way along the length of the machine.
Having a solid understanding of trigonometric functions is crucial to learn various advanced mathematical concepts; such as identifying geometric properties of complex numbers and using sinusoidal functions to model many periodic phenomena in science and engineering.
Spectral analysis is used to decompose a time series into several sinusoidal functions of a certain wavelength in order to identify the seasonal variations of different lengths.