Sine Wave

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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.
Once a tentative model has been concluded, students focus on measuring necessary quantities that will constitute the form of the sinusoidal function.
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.
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.
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.