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From "Phil Steitz (JIRA)" <>
Subject [jira] Reopened: (MATH-276) Calculate isNan and isFinite in Complex constructor
Date Thu, 18 Jun 2009 02:26:07 GMT


Phil Steitz reopened MATH-276:

Per Luc's comment on dev list, we need to address serialization overhead issue.  Custom serialization
and new fields transient?

> Calculate isNan and isFinite in Complex constructor
> ---------------------------------------------------
>                 Key: MATH-276
>                 URL:
>             Project: Commons Math
>          Issue Type: Improvement
>    Affects Versions: 2.0
>            Reporter: Mark Anderson
>            Priority: Minor
>             Fix For: 2.0
>         Attachments: Complex.patch
> From profiling some code performing a large number of FFT operations I found that due
to isNaN being called as part of complex arithmetic a large proportion of time was spent within
> I would propose calculating isNaN and isFinite in the constructor to save calculating
these values each time the methods are called.

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