Math problem. How to code `Xn+1 = Xn + Xn * S`

Questions & Help Questions
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3

Hey @KristerV .
You can use Stream.iterate/2 here.

iex> x0 = 1.0
iex> s = 0.008
iex> stream = Stream.iterate(x0, &Float.round(&1 * (1 - s), 3))
iex> Enum.take(stream, 3)
[1.0, 0.992, 0.984]