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Posted to issues@commons.apache.org by "Roman Werpachowski (JIRA)" <ji...@apache.org> on 2015/10/24 14:36:27 UTC

[jira] [Created] (MATH-1284) Vector is-not-a Point

Roman Werpachowski created MATH-1284:
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             Summary: Vector is-not-a Point
                 Key: MATH-1284
                 URL: https://issues.apache.org/jira/browse/MATH-1284
             Project: Commons Math
          Issue Type: Bug
    Affects Versions: 3.5
            Reporter: Roman Werpachowski
            Priority: Minor


The class hierarchy for geometry claims that Vector is-a Point: https://commons.apache.org/proper/commons-math/apidocs/org/apache/commons/math3/geometry/Point.html

This is mathematically incorrect, see e.g. http://math.stackexchange.com/a/645827

Just because they share the same numerical representation, Point and Vector shouldn't be crammed into a common class hierarchy.



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