I have this question:
Create a time series of the function $\sin(7*\sin(140*t))$ with a sampling rate of $1000Hz$ for a time duration of $2.5s$. Fourier transform this time series and identify the absolute value (amplitude) of the largest Fourier component in the range $0$ Hz to $450$ Hz.
My code so far is:
ClearAll["Global`*"]
numpt = 2500; dt = 400; T = dt numpt;
data = Table[Sin[7*Sin[140*t]], {t, 0, T - dt, dt}];
fdata = Abs[Fourier[data]];
MaxValue[fdata]]
However i am struggling to find the max value in the range.