drasys.or.matrix
Class Vect

java.lang.Object
  |
  +--drasys.or.matrix.RealContainer
        |
        +--drasys.or.matrix.Vect

Direct Known Subclasses:

ContiguousVector, SparseVector

public abstract class Vect

extends RealContainer

implements VectorI, java.io.Serializable

Abstract base class for vectors.

References:

Matrix Computations (Johns Hopkins Studies in the Mathematical Sciences)
    Gene H. Golub, Charles F. Van Loan (Contributor) / Paperback / Published 1996
Numerical Recipes in C : The Art of Scientific Computing
    William H. Press, et al / Hardcover / Published 1993
Parallel Algorithms for Matrix Computations
    K.A. Gallivan / Paperback / Published 1990

See Also:

Serialized Form

Fields inherited from class drasys.or.matrix.RealContainer

_epsilon, _globalEpsilon

 

Constructor Summary

Vect()

Vect(double epsilon)

 

Method Summary
boolean	equals(java.lang.Object o)
boolean	equals(VectorI vector)           Returns true if the vectors are numerically equal.
void	setElements(VectorI values)           Sets the value of the elements from the non-null values in 'values'.
double	sum()           Returns the sum of the elements in the vector.
double	sum(int begin)           Returns the sum of the elements in the subvector.
double	sumOfSquaredDifferences(double scaler)           Returns the sum the squared differences between 'scaler' and the elements in the vector.
double	sumOfSquaredDifferences(int begin, double scaler)           Returns the sum the squared differences between 'scaler' and the elements in the subvector.
double	sumOfSquares()           Returns the sum of the squares of the elements in the vector.
double	sumOfSquares(int begin)           Returns the sum of the squares of the elements in the subvector.
java.lang.String	toString()

 

Methods inherited from class drasys.or.matrix.RealContainer

equals, getEpsilon, getGlobalEpsilon, setEpsilon, setGlobalEpsilon

 

Methods inherited from class java.lang.Object

clone, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

 

Constructor Detail

Vect

public Vect()

Vect

public Vect(double epsilon)

setElements

public void setElements(VectorI values)

Sets the value of the elements from the non-null values in 'values'. Elements corresponding to null elements in 'values' are not changed.

Specified by:

setElements in interface VectorI

equals

public boolean equals(java.lang.Object o)

Overrides:

equals in class java.lang.Object

equals

public boolean equals(VectorI vector)

Returns true if the vectors are numerically equal. To be numerically equal the vectors must be the same size and all the elements must be equal to within this vector's 'epsilon'. All null elements have a value of zero for the comparison.

Specified by:

equals in interface VectorI

sum

public double sum()

Returns the sum of the elements in the vector.

Specified by:

sum in interface VectorI

sumOfSquares

public double sumOfSquares()

Returns the sum of the squares of the elements in the vector.

Specified by:

sumOfSquares in interface VectorI

sumOfSquaredDifferences

public double sumOfSquaredDifferences(double scaler)

Returns the sum the squared differences between 'scaler' and the elements in the vector.

Specified by:

sumOfSquaredDifferences in interface VectorI

sum

public double sum(int begin)

Returns the sum of the elements in the subvector.

Specified by:

sum in interface VectorI

sumOfSquares

public double sumOfSquares(int begin)

Returns the sum of the squares of the elements in the subvector.

Specified by:

sumOfSquares in interface VectorI

sumOfSquaredDifferences

public double sumOfSquaredDifferences(int begin,
                                      double scaler)

Returns the sum the squared differences between 'scaler' and the elements in the subvector.

Specified by:

sumOfSquaredDifferences in interface VectorI

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object