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[lilfellabob]

Hey all,

Just wanting some help with solving Fourier series on my classpad. I just updated the OS to 3.04 (I think) so I can see the Fourier option under interactive > advanced.
My problem is I don't understand how to put it my Fourier series question.
Say I have f(t) = {-2 when -Pi <= t < 0, 2 when <= - < Pi} f(t + 2Pi) all t.
how do I put this in? If I go into interactive > advanced > fourier then I get forms for
Expression,
Inde var,
Parameter,
and a dropdown with Pure Math, Modern Physics, Probability, Classical Physics and Signal Processing.
How do I fill this in correctly or how do I type it in main correctly?

Thanks heaps,

Josh