RFR: 8077587: BigInteger Roots [v6]

[Raffaello Giulietti]

On Sat, 10 May 2025 11:57:32 GMT, fabioromano1 <duke at openjdk.org> wrote:

>> This PR implements nth root computation for BigIntegers using Newton method.
>
> fabioromano1 has updated the pull request incrementally with two additional commits since the last revision:
> 
>  - Merge branch 'nth-root-branch' of https://github.com/fabioromano1/jdk into nth-root-branch
>  - Restore nthRoot() public methods in BigInteger.java

@fabioromano1 Is [this proof](https://github.com/user-attachments/files/19785045/nth_root_newton_proof_integers.pdf) still relevant?

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PR Comment: https://git.openjdk.org/jdk/pull/24898#issuecomment-2873412219