srowen commented on issue #25279: [SPARK-28519][SQL] Use StrictMath log, pow functions for platform independence URL: https://github.com/apache/spark/pull/25279#issuecomment-522761321 That could well be reasonable. I didn't do so simply because I wasn't aware of cases where the Oracle JDK returns different answers for sqrt(). At least, when running tests on ARM it evidently doesn't produce different answers for any of the sqrt-related tests, but that doesn't mean it doesn't exist.
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