RFR: 8366478: BigDecimal roots

[fabioromano1]

On Mon, 8 Sep 2025 16:25:00 GMT, fabioromano1 <duke at openjdk.org> wrote:

> An implementation of `BigDecimal.nthRoot(int, MathContext)`.

@rgiulietti Here is the PR.

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PR Comment: https://git.openjdk.org/jdk/pull/27148#issuecomment-3267146884