I've tried a simple plot of the FT of a simple cosine function with respect to omega and got some unimpressive results. The command I tried was:(adsbygoogle = window.adsbygoogle || []).push({});

Plot[FourierTransform[Cos[3000 t], t, ω], {ω, 2000, 4000}]

So I was expecting a nice delta function at 3000 but it's not visible or not present on the plot. How I can resolve this problem to see a spike?

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# FT's in Mathematica

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