org.lsmp.djep.vectorJep.values

Class Tensor

java.lang.Object

org.lsmp.djep.vectorJep.values.Tensor

All Implemented Interfaces:

MatrixValueI

public class Tensor
extends Object
implements MatrixValueI

Represents tensor (generalisation of Matrix/Vector).

Version:

1.3.0.2 now extends number

Author:

Rich Morris Created on 07-Jul-2003

Constructor Summary

Constructors

Constructor and Description
Tensor(Dimensions dims) Creates a Tensor with the given dimension.
Tensor(int len, Dimensions dims) Creates a tensor with dimensions [len,dims[0],...,dims[n]]
Tensor(Tensor t) Creates a Tensor with same dimension as the arguments.

Method Summary

Modifier and Type	Method and Description
protected void	bufferAppend(StringBuffer sb, int currank) Recursive procedure to print the tensor with lots of brackets.
MatrixValueI	copy() returns a copy of this value.
boolean	equals(Object obj) value of constant ele(1).
Dimensions	getDim() Returns the dimension of this object.
Object	getEle(int i) gets the i-th element, treats data a a linear array.
static MatrixValueI	getInstance(Dimensions dims) Factory method to return a new Vector, Matrix or Tensor with the given dimensions.
int	getNumEles() The total number of elements.
int	hashCode() Always override hashCode when you override equals.
void	setEle(int i, Object value) sets the i-th element, treats data a a linear array.
void	setEles(MatrixValueI val) sets the elements to those of the arguments.
String	toString() Returns a string rep of tensor.

Methods inherited from class java.lang.Object

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

Constructor Detail

Tensor

public Tensor(Dimensions dims)

Creates a Tensor with the given dimension.

Tensor

public Tensor(Tensor t)

Creates a Tensor with same dimension as the arguments.

Tensor

public Tensor(int len,
              Dimensions dims)

Creates a tensor with dimensions [len,dims[0],...,dims[n]]

Method Detail

copy

public MatrixValueI copy()

Description copied from interface: MatrixValueI

returns a copy of this value.

Specified by:

copy in interface MatrixValueI

getDim

public Dimensions getDim()

Description copied from interface: MatrixValueI

Returns the dimension of this object.

Specified by:

getDim in interface MatrixValueI

getNumEles

public int getNumEles()

Description copied from interface: MatrixValueI

The total number of elements.

Specified by:

getNumEles in interface MatrixValueI

setEle

public void setEle(int i,
                   Object value)

Description copied from interface: MatrixValueI

sets the i-th element, treats data a a linear array.

Specified by:

setEle in interface MatrixValueI

getEle

public Object getEle(int i)

Description copied from interface: MatrixValueI

gets the i-th element, treats data a a linear array.

Specified by:

getEle in interface MatrixValueI

setEles

public void setEles(MatrixValueI val)

sets the elements to those of the arguments.

Specified by:

setEles in interface MatrixValueI

getInstance

public static MatrixValueI getInstance(Dimensions dims)

Factory method to return a new Vector, Matrix or Tensor with the given dimensions.

bufferAppend

protected void bufferAppend(StringBuffer sb,
                            int currank)

Recursive procedure to print the tensor with lots of brackets.

toString

public String toString()

Returns a string rep of tensor. Uses [[a,b],[c,d]] syntax.

Overrides:

toString in class Object

equals

public boolean equals(Object obj)

value of constant ele(1).

Overrides:

equals in class Object

hashCode

public int hashCode()

Always override hashCode when you override equals. Efective Java, Joshua Bloch, Sun Press

Overrides:

hashCode in class Object