RFR: 8077587: BigInteger Roots [v56]

[fabioromano1]

On Tue, 29 Jul 2025 14:36:57 GMT, Raffaello Giulietti <rgiulietti at openjdk.org> wrote:

> Here we have a kind of opposite case: rad can become very imprecise, up to losing all bits from x and become 0. I think this deserves a quick comment.

Later there is `rad = Math.nextUp(rad)`, that ensures `rad > 0.0`.

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PR Review Comment: https://git.openjdk.org/jdk/pull/24898#discussion_r2240085390