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Class JSci.physics.relativity.Rank2Tensor 

java.lang.Object
   |
   +----JSci.physics.relativity.Tensor
           |
           +----JSci.physics.relativity.Rank2Tensor
public class Rank2Tensor
extends Tensor
The Rank2Tensor class encapsulates 2nd rank tensors.

Variable Index

o rank2

Constructor Index

o Rank2Tensor()
Constructs a 2nd rank tensor.

Method Index

o add(Rank2Tensor)
Returns the addition of this tensor and another.
o equals(Object)
Compares two tensors for equality.
o getComponent(int, int)
Returns a component of this tensor.
o multiply(Rank1Tensor)
Returns the multiplication of this tensor by another.
o setComponent(int, int, double)
Sets the value of a component of this tensor.
o subtract(Rank2Tensor)
Returns the subtraction of this tensor by another.
o tensorProduct(Rank1Tensor)
Returns the tensor product of this tensor and another.
o tensorProduct(Rank2Tensor)
Returns the tensor product of this tensor and another.

Variables

o rank2 
 protected double rank2[][]

Constructors

o Rank2Tensor 
 public Rank2Tensor()
Constructs a 2nd rank tensor.

Methods

o equals 
 public boolean equals(Object a)
Compares two tensors for equality.

Parameters:
a - a 2nd rank tensor
Overrides:
equals in class Object
o getComponent 
 public double getComponent(int i,
                            int j)
Returns a component of this tensor.

Parameters:
i - 1st index
j - 2nd index
Throws: DimensionException
If attempting to access an invalid component.
o setComponent 
 public void setComponent(int i,
                          int j,
                          double x)
Sets the value of a component of this tensor.

Parameters:
i - 1st index
j - 2nd index
x - value
Throws: DimensionException
If attempting to access an invalid component.
o add 
 public Rank2Tensor add(Rank2Tensor t)
Returns the addition of this tensor and another.

Parameters:
t - a 2nd rank tensor
o subtract 
 public Rank2Tensor subtract(Rank2Tensor t)
Returns the subtraction of this tensor by another.

Parameters:
t - a 2nd rank tensor
o multiply 
 public Rank1Tensor multiply(Rank1Tensor t)
Returns the multiplication of this tensor by another.

Parameters:
t - a 1st rank tensor
o tensorProduct 
 public Rank3Tensor tensorProduct(Rank1Tensor t)
Returns the tensor product of this tensor and another.

Parameters:
t - a 1st rank tensor
o tensorProduct 
 public Rank4Tensor tensorProduct(Rank2Tensor t)
Returns the tensor product of this tensor and another.

Parameters:
t - a 2nd rank tensor 
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