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java.lang.Object
   |
   +----acg.stuttgart.rich.vector.VectorND

Summary

public abstract class  VectorND
     extends java.lang.Object
{
          // Fields 1
     protected int dimension;

          // Constructors 1
     public VectorND(int);

          // Methods 11
     public static float[] add(float[], float[]) throws VectorNDException;
     public static float[] copy(float[]);
     public static float inner(float[], float[]) throws VectorNDException;
     public static float magnatude(float[]);
     public static float[] multiply(float[], float);
     public static float[][] outer(float[], float[]) throws VectorNDException;
     public static float[] subtract(float[], float[]) throws VectorNDException;
     public static String toString(float[]);

     public int getDimension();
     public abstract float[] toArray();
     public String toString();
}

The VectorND class is the abstract base class for the Vector2D and Vector3D classes, and also provides static methods for performing vector operations on arbitrary length arrays.

Cross Reference

Extended By:

Vector2D, Vector3D

   protected int dimension

Constructors

· VectorND

Summary  |  Top

   public VectorND(int d) 

Constructor

   public int getDimension() 

Returns the dimension of a subclass of VectorND.

   public abstract float[] toArray() 

Convert the vector to an array.

   public String toString() 

Convert this vector to a string

Overrides:

toString in class Object

   public static String toString(float[] a) 

Static toString method.

   public static float[] copy(float[] a) 

Copy the contents of an arbitrary length vector.

   public static float magnatude(float[] a) 

The magnatude method computes the magnatude of an arbitrary length vector.

   public static float[] add(float[] a, 
                             float[] b)  throws VectorNDException

Compute vector a + b

   public static float[] subtract(float[] a, 
                                  float[] b)  throws VectorNDException

Compute vector a - b

   public static float[] multiply(float[] a, 
                                  float s) 

Compute a*s, where s is scalar

   public static float inner(float[] a, 
                             float[] b)  throws VectorNDException

Compute inner (dot) product of vectors a and b.

   public static float[][] outer(float[] a, 
                                 float[] b)  throws VectorNDException

Compute outer product of two vectors. Note: this results in a square matrix of dimension a.length

Parameter	Description
a	An array representing the first vector.
b	An array representing the second vector.

Returns:

The matrix resulting from the outer product of the two vectors.

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