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https://issues.apache.org/jira/browse/FLINK-13207?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17323224#comment-17323224
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Flink Jira Bot commented on FLINK-13207:
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This issue is assigned but has not received an update in 7 days so it has been
labeled "stale-assigned". If you are still working on the issue, please give an
update and remove the label. If you are no longer working on the issue, please
unassign so someone else may work on it. In 7 days the issue will be
automatically unassigned.
> Add the algorithm of Fast Fourier Transformation(FFT)
> -----------------------------------------------------
>
> Key: FLINK-13207
> URL: https://issues.apache.org/jira/browse/FLINK-13207
> Project: Flink
> Issue Type: Sub-task
> Components: Library / Machine Learning
> Reporter: Xu Yang
> Assignee: Xu Yang
> Priority: Major
> Labels: pull-request-available, stale-assigned
> Time Spent: 10m
> Remaining Estimate: 0h
>
> Add 2 common used algorithms of Fast Fourier Transformation(FFT)
> # Cooley-Tukey algorithm, high performance, but only supports length of
> power-of-2.
> # Chirp-Z algorithm, can perform FFT with any length.
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