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 ?
1 of Muller and Watson (2015) with 10 cosine waves to estimate the long-run covariance matrix.
Newer sensors coming to market interpolate signals developed from sine and cosine waves.
Resolvers generate analog output as a pair of sine waves, out of phase by 90 degrees, called sine and cosine waves.