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https://issues.apache.org/jira/browse/HAMA-905?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Martin Illecker reassigned HAMA-905:
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Assignee: Martin Illecker
> Fix Pi Estimator Example
> ------------------------
>
> Key: HAMA-905
> URL: https://issues.apache.org/jira/browse/HAMA-905
> Project: Hama
> Issue Type: Bug
> Components: examples
> Affects Versions: 0.6.4
> Reporter: Martin Illecker
> Assignee: Martin Illecker
> Priority: Minor
> Labels: example, pi_example
> Fix For: 0.7.0
>
> Attachments: HAMA-905.patch, HAMA-905_2.patch
>
>
> *Fix Pi Estimator Example*
> I think we should skip the *sqrt* method in \[1] and change the if condition
> based on formula 6 on page 2 in \[2].
> {code}
> IF (x^2 + y^2 <= 1) THEN
> SUM = SUM +1
> END IF
> {code}
> Because the Equation of the Circle is
> {code}
> x^2 + y^2 = r^2
> x^2 + y^2 = 1 (with r=1 in unit circle)
> -> (x^2 + y^2 <= 1)
> {code}
> Thanks!
> \[1]
> https://github.com/apache/hama/blob/trunk/examples/src/main/java/org/apache/hama/examples/PiEstimator.java#L62-64
> \[2] http://arxiv.org/pdf/1404.1499v2.pdf
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