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JJ Redick

IA
Math SL IA on Sine Periodic Functions . Needs Help in Development!

I've been working on my math IA on sine periodic functions to predict annual sales of a company. I used a local company's sales data for my IA, and i don't know what should I do with the data gathered and what to present. Any help with the development to make a good Math SL IA? All replies appreciated

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If you're trying to fit a function to data, you can use curve fitting software (available through programs like Logger Pro and MATLAB) to find constants such that a function (eg a sinusoid) fits a dataset well. I would question the validity of a sinusoidal model though - there's so many external factors and you might just be arguing "this looks like a sinusoidal curve so I'm fitting one to it". You'll need to justify the validity of such a model somehow.

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