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https://issues.apache.org/jira/browse/MATH-579?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13035426#comment-13035426
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Phil Steitz commented on MATH-579:
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I think Luc did a great job providing the right information to users. In
answer to your question, Gilles, there are some applications where 100ms is a
big deal and if they just make one or two calls, the associated latency will be
surprising and could cause problems for them. If we get a lot of feedback from
users indicating that this latency is a material practical problem for them, or
prevents them using the library, we may want to consider making the embedded
use configurable. I can think of only a few cases in my experience where this
might be an issue; but I am thankful to Arne for having pointed it out and Luc
for improving the documentation.
> FastMath.pow much slower than Math.pow
> --------------------------------------
>
> Key: MATH-579
> URL: https://issues.apache.org/jira/browse/MATH-579
> Project: Commons Math
> Issue Type: Bug
> Affects Versions: 3.0
> Environment: java version "1.6.0_22"
> OpenJDK Runtime Environment (IcedTea6 1.10.1) (6b22-1.10.1-0ubuntu1)
> OpenJDK 64-Bit Server VM (build 20.0-b11, mixed mode)
> java version "1.6.0_24"
> Java(TM) SE Runtime Environment (build 1.6.0_24-b07)
> Java HotSpot(TM) 64-Bit Server VM (build 19.1-b02, mixed mode)
> Reporter: Arne Plöse
> Fix For: 3.0
>
>
> calculating FastMath.pow(10, 0.1 / 20) is approximately 65 times slower as
> the Math.pow() function.
> Ether this is a bug or a javadoc comment is missing.
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