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Fourier Cos coefficient vs Integrate vs common sense
I was trying to find out what the (discrete) Fourier transformation of the following function is
$$
f(\nu, u) = \frac{\sinh \nu}{\cosh \nu - \cos u}
$$
So at first, I tried to evaluate a fancy MMA ...
- 2,396
36
votes
4
answers
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Usage of Assuming for Integration
For some reason, when I enter the following integration in Mathematica
Assuming[{k ∈ Integers}, Integrate[ Exp[ I k t], {t, -π, π}]]
the result turns out to be 0....
- 533