Questions on the discrete and continuous Fourier analysis functions of Mathematica, as well as the FourierSeries` package.

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1answer
77 views

Error messages when using NInverseFourierTransform

I have two functions that I need to inverse Fourier transform and I was trying to get Mathematica to help me. I tried simply using theInverseFourierTransform ...
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0answers
141 views

Proving (self) similarity with Mathematica - Reccurrence Plots, Similarity Plots etc

I posted this question in math.se but given the sheer tumultous number of questions that keep appearing on math.se and also given that I am trying to accomplish this in Mathematica, I thought I'd post ...
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0answers
216 views

Doing local FFT on huge 3D vector data cell mesh and visualizing it spatially?

Simulation type: I'm running a simulation with the OOMMF micromagnetics package http://math.nist.gov/oommf/ where are magnet is represented by a mesh of 3 million cells, it gets excited by a ...
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0answers
63 views

Fourier transform of a signal

I have problem of finding right answer for my problem. Here is my equation: $$E(t)=\sum_{n=1}^{\infty} c_n \sin\left(\frac{n \pi}{T}t\right)$$ What have I done: I have a notebook asking for 3 ...
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0answers
111 views

Obtaining fourier transform for Root Raised Cosine pulse

I have been trying to obtain the Fourier transform for time domain root-raised-cosine pulse using Mathematica. The answer I'm getting from Mathematica is not the correct answer. When I input the ...
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0answers
240 views

Mathematica's definition of Fourier Transform

I would to know how is defined this function in Mathematica: FourierTransform[expr,t,ω] That function give the Fourier Transform of a complex function of real ...