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January 31st, 2011, 04:33 PM   #1
Joined: Jan 2011

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Finding the function of this graph


I have a simple question.
Could anyone tell me how to get a function from a graph.
It should be a mathematical way. I am trying to say it should be calculated.

It would be cool if you could use this graph as an example.

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January 31st, 2011, 06:13 PM   #2
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Re: Finding the function of this graph

It's challenging to get exact results from a graph, but to me it appears to be a sine function (0,0) with period of about 6.25 whose amplitude is roughly doubling every half period, where f(2) ? 2 thus using these crude guesses we have:

After some minor simplification:

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