[jira] [Work logged] (NUMBERS-163) Summation and LinearCombination Accumulators

[ASF GitHub Bot (Jira)]

     [ 
https://issues.apache.org/jira/browse/NUMBERS-163?focusedWorklogId=610754&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-610754
 ]

ASF GitHub Bot logged work on NUMBERS-163:
------------------------------------------

                Author: ASF GitHub Bot
            Created on: 14/Jun/21 16:10
            Start Date: 14/Jun/21 16:10
    Worklog Time Spent: 10m 
      Work Description: coveralls edited a comment on pull request #95:
URL: https://github.com/apache/commons-numbers/pull/95#issuecomment-860599924


   
   [![Coverage 
Status](https://coveralls.io/builds/40564790/badge)](https://coveralls.io/builds/40564790)
   
   Coverage increased (+0.003%) to 99.665% when pulling 
**30e8afb29eb11039e5780112c3de91421e8d4632 on darkma773r:numbers-163** into 
**19899e7124dcd182fb3ebe31f17405c15be6cd19 on apache:master**.
   


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Issue Time Tracking
-------------------

    Worklog Id:     (was: 610754)
    Time Spent: 0.5h  (was: 20m)

> Summation and LinearCombination Accumulators
> --------------------------------------------
>
>                 Key: NUMBERS-163
>                 URL: https://issues.apache.org/jira/browse/NUMBERS-163
>             Project: Commons Numbers
>          Issue Type: New Feature
>            Reporter: Matt Juntunen
>            Priority: Major
>          Time Spent: 0.5h
>  Remaining Estimate: 0h
>
> It would be useful to have simple accumulator classes in {{Summation}} and 
> {{LinearCombination}} to perform extended precision operations on arbitrary 
> collections of values without requiring conversion to {{double[]}}. Ex:
> {code:java}
> Summation.Accumulator sum= Summation.accumulator(1d);
> sum.add(x)
>     .add(y)
>     .add(z)
>    .add(w);
> double sumResult = sum.get();
> LinearCombination.Accumulator comb = LinearCombination.accumulator(1d);
> comb.add(x, scale)
>     .add(y, scale)
>     .add(z, scale)
>     .add(w, scale);
> double combResult = comb.get();
> {code}



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