| Package | Description | 
|---|---|
| org.apache.commons.geometry.euclidean.twod | 
 This package provides basic 2D geometry components. | 
| Modifier and Type | Method and Description | 
|---|---|
| Vector2D.Sum | Vector2D.Sum. add(Vector2D vec)Add a vector to this instance. | 
| Vector2D.Sum | Vector2D.Sum. addScaled(double scale,
         Vector2D vec)Add a scaled vector to this instance. | 
| static Vector2D.Sum | Vector2D.Sum. create()Create a new instance with an initial value set to the  zero vector. | 
| static Vector2D.Sum | Vector2D.Sum. of(Vector2D initial)Construct a new instance with an initial value set to the argument. | 
| static Vector2D.Sum | Vector2D.Sum. of(Vector2D first,
  Vector2D... more)Construct a new instance from multiple values. | 
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