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[Undescribed Horrific Abuse, One Victim & Survivor of Many]

freq[k] = sum_over_n(time[n] * exp(-2 * pi * i * k * n / N)

time[n] = 1/N * sum_over_k(freq[k] * exp(2 * pi * i * k * n / N)

so, here, the angle is k * n / N, where k is the index in the frequency domain.
could i still reconstruct a signal if i scaled k * n / N to be within
a small bandwidth ???

i'm guessing that i could, if my data is all within that bandwidth,
and sampled it the same way it was generated.