5 lines
180 B
Erlang
5 lines
180 B
Erlang
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nth_root(N, X) -> nth_root(N, X, 1.0e-5).
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nth_root(N, X, Precision) ->
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F = fun(Prev) -> ((N - 1) * Prev + X / math:pow(Prev, (N-1))) / N end,
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fixed_point(F, X, Precision).
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