RFR: 8334755: Asymptotically faster implementation of square root algorithm [v35]
fabioromano1
duke at openjdk.org
Wed Jul 24 10:32:08 UTC 2024
> I have implemented the Zimmermann's square root algorithm, available in works [here](https://inria.hal.science/inria-00072854/en/) and [here](https://www.researchgate.net/publication/220532560_A_proof_of_GMP_square_root).
>
> The algorithm is proved to be asymptotically faster than the Newton's Method, even for small numbers. To get an idea of how much the Newton's Method is slow, consult my article [here](https://arxiv.org/abs/2406.07751), in which I compare Newton's Method with a version of classical square root algorithm that I implemented. After implementing Zimmermann's algorithm, it turns out that it is faster than my algorithm even for small numbers.
fabioromano1 has updated the pull request incrementally with one additional commit since the last revision:
Made normalization consistent with that of the C code in the paper
-------------
Changes:
- all: https://git.openjdk.org/jdk/pull/19710/files
- new: https://git.openjdk.org/jdk/pull/19710/files/2598ec97..6561f5a7
Webrevs:
- full: https://webrevs.openjdk.org/?repo=jdk&pr=19710&range=34
- incr: https://webrevs.openjdk.org/?repo=jdk&pr=19710&range=33-34
Stats: 66 lines in 1 file changed: 6 ins; 41 del; 19 mod
Patch: https://git.openjdk.org/jdk/pull/19710.diff
Fetch: git fetch https://git.openjdk.org/jdk.git pull/19710/head:pull/19710
PR: https://git.openjdk.org/jdk/pull/19710
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