Fourier Transformation -

I've been doing a lot of research on this topic and I'm finally getting somewhere. Below is two complex numbers from the java code I'm using: -9771.0 - j2125.0 -16184.09634718744 - j53968.71008512241

I know the amplitude/magnitude can be computed by doing the sqrt(a^2 + b^2) and this as far as I've gotten with this. I've read about sample rate but I'll need a better explanation of this alone and would like 开发者_如何学运维to be pointed in the right direction to obtain the knowledge. I've done the powerspectum graph but I need to do this on paper so I'll know how to obtain the frequency.

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Applying Fourier Transformation to two values is pretty meaningless. You apply it to series of values (signal), then frequency starts to make sense. You can't speak about frequency in series of two values.