RFR: 8077587: BigInteger Roots [v6]

[Raffaello Giulietti]

On Mon, 12 May 2025 19:23:16 GMT, fabioromano1 <duke at openjdk.org> wrote:

>> @fabioromano1 Is [this proof](https://github.com/user-attachments/files/19785045/nth_root_newton_proof_integers.pdf) still relevant?
>
> @rgiulietti No, the proof of the recurrence used is the one by Zimmermann linked in the code.

@fabioromano1 I guess this work will be the basis for a future work on `BigDecimal` _n_-th root?

Otherwise, there needs to be some evidence for useful use cases of _general interest_ to justify adding _n_-th root to `BigInteger`.

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PR Comment: https://git.openjdk.org/jdk/pull/24898#issuecomment-2881083945