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https://issues.apache.org/jira/browse/NUMBERS-90?focusedWorklogId=187463&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-187463
]
ASF GitHub Bot logged work on NUMBERS-90:
-----------------------------------------
Author: ASF GitHub Bot
Created on: 20/Jan/19 02:37
Start Date: 20/Jan/19 02:37
Worklog Time Spent: 10m
Work Description: coveralls commented on issue #28: NUMBERS-90: adding
DoublePrecisionContext and FloatPrecisionContext
URL: https://github.com/apache/commons-numbers/pull/28#issuecomment-455832401
[](https://coveralls.io/builds/21170952)
Coverage increased (+0.2%) to 92.985% when pulling
**40eb7f5c0d5a5f8d027f6acccc0739e778e26007 on darkma773r:numbers-90** into
**2db8cdfdc65326a4a7e86c004c7c147a645944b0 on apache:master**.
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Issue Time Tracking
-------------------
Worklog Id: (was: 187463)
Time Spent: 20m (was: 10m)
> DoublePrecisionContext
> ----------------------
>
> Key: NUMBERS-90
> URL: https://issues.apache.org/jira/browse/NUMBERS-90
> Project: Commons Numbers
> Issue Type: New Feature
> Reporter: Matt Juntunen
> Priority: Blocker
> Time Spent: 20m
> Remaining Estimate: 0h
>
> We should add a new class to commons-numbers-core that encapsulates
> configurable strategies for comparing doubles. This is required for
> GEOMETRY-11. Here is what I'm picturing:
> {code:java}
> // abstract class for the general concept of comparisons
> public abstract class DoublePrecisionContext implements Comparator<Double> {
> public abstract boolean equals(double a, double b);
> public int compare(double a, double b) { /* ... */ }
> public int compare(Double a, Double b) { /* ... */ }
> }
> // ...
> // concrete class implementing a specific strategy
> public class EpsilonUlpDoublePrecisionContext extends DoublePrecisionContext {
> public EpsilonUlpDoublePrecisionContext(double eps, double maxUlps) { /*
> ... */ }
> @Override
> public boolean equals(double a, double b) { /* ... */ }
> }
> {code}
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