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https://issues.apache.org/jira/browse/NUMBERS-203?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17762797#comment-17762797
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Alex Herbert commented on NUMBERS-203:
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{quote} link to the "quadruple-precision" article ...
{quote}
I added a section in the user-guide comparing the implementation to a quadruple
precision float.
{quote}Would it make sense to create a new "field" module in "Commons Math"
whose scope would be implementations of miscellaneous algorithms
{quote}
It is difficult to code an algorithm for any value type. An algorithm is
typically implemented knowing the limitations of the value type, particularly
with regard to iterative algorithms that must converge to a tolerance. The
field interface does not currently support a relative comparison between two
values which would be required here, or know the supported bounds of the value
type (to enable domain error detection during computation).
It could be added to a Jira ticket for reference with a goal to collect use
cases from interested parties.
> Add a field for the DD number
> -----------------------------
>
> Key: NUMBERS-203
> URL: https://issues.apache.org/jira/browse/NUMBERS-203
> Project: Commons Numbers
> Issue Type: New Feature
> Components: field
> Reporter: Alex Herbert
> Priority: Minor
> Fix For: 1.2
>
>
> The field module can add a DDField class to allow using the double-double
> number as a field.
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