[jira] [Updated] (MATH-1354) Easy conversion from BigDecimal to BigFraction

["Rob Tompkins (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/MATH-1354?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Rob Tompkins updated MATH-1354:
-------------------------------
    Fix Version/s: 4.X

> Easy conversion from BigDecimal to BigFraction
> ----------------------------------------------
>
>                 Key: MATH-1354
>                 URL: https://issues.apache.org/jira/browse/MATH-1354
>             Project: Commons Math
>          Issue Type: Wish
>            Reporter: Dobes Vandermeer
>             Fix For: 4.X
>
>
> Users of BigFraction might also be working with BigDecimal.  Here's a simple way to convert BigDecimal to BigFraction:
> {code}
>     public static BigFraction bigDecimalToBigFraction(BigDecimal bd) {
>         int scale = bd.scale();
>         // If scale >= 0 then the value is bd.unscaledValue() / 10^scale
>         if(scale >= 0)
>             return new BigFraction(bd.unscaledValue(), BigInteger.TEN.pow(scale));
>         // If scale < 0 then the value is bd.unscaledValue() * 10^-scale
>         return new BigFraction(bd.unscaledValue().multiply(BigInteger.TEN.pow(-scale)));
>     }
> {code}
> It might be nice to have this incorporated into the BigFraction class as a constructor.



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