Do you mean that you have periodic data that you wish to represent by a periodic function and to draw graphs of that function? If so, then you probably want to use a Fourier series function. See http://www.fourier-series.com/ for a detailed explanation.
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Do you mean that you have periodic data that you wish to represent by a periodic function and to draw graphs of that function? If so, then you probably want to use a Fourier series function. See http://www.fourier-series.com/ for a detailed explanation.
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