Question over pseudo algorithm
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I'm trying to convert this pseudo algorithm into code. Essentially, I am solving a differential equation with ode45 which gives results in the time domain. Since my function is non-linear, I want to take the last value of each iteration, store it and then FFT the new signal. In the end, I want the results in the frequency domain.
Attahched the pseudocode I'm trying to follow. I'm especially lost on how to create the line: y0(f_i+1) = y_end(f_i)
Any help is appreciated, thank you!