org.jscience.mathematics.analysis.expressions.symbolic
Class Subtraction

java.lang.Object
  org.jscience.mathematics.analysis.expressions.OperatorExpression
      org.jscience.mathematics.analysis.expressions.BinaryOperator
          org.jscience.mathematics.analysis.expressions.symbolic.Subtraction

All Implemented Interfaces:

java.io.Serializable, Expression, NumericalDifferentiable, JavaExpressible, XMLExpressible

public class Subtraction
extends BinaryOperator
implements NumericalDifferentiable

Class representing substraction of two Expression objects.
Example of use:

 Expression e1 = ...;
 Expression e2 = ...;
 Expression e3 = new Subtraction( e1, e2 );
 




See Also:
Expression, 
BinaryOperator, 
Serialized Form






Field Summary

 
Fields inherited from class org.jscience.mathematics.analysis.expressions.BinaryOperator
deriv, evalValid, evalValue, secondOperand, valid
 
Fields inherited from class org.jscience.mathematics.analysis.expressions.OperatorExpression
firstOperand
 



Constructor Summary
Subtraction(Expression leftOp,
            Expression rightOp)



          Creates an Subtraction object that represent the subtraction
 between two Expression objects.
 



Method Summary




 Expression
diff(NamedDataExpression x)



          DOCUMENT ME!



 boolean
equals(java.lang.Object e)



          DOCUMENT ME!



 double
eval()



          DOCUMENT ME!



 Expression
factor(Expression e)



          DOCUMENT ME!



 Expression
isolate(Expression f,
        Expression e)



          DOCUMENT ME!



 double
numDiff(int i)



          DOCUMENT ME!



 double
numEval()



          DOCUMENT ME!



 Expression
optimize()



          DOCUMENT ME!



 Expression
replace(Expression a,
        Expression b)



          DOCUMENT ME!



 java.lang.String
toJava()



          DOCUMENT ME!



 java.lang.String
toString()



          DOCUMENT ME!



 java.lang.String
toTaylorMap()



          DOCUMENT ME!



 java.lang.String
toXML()



          DOCUMENT ME!


 
Methods inherited from class org.jscience.mathematics.analysis.expressions.BinaryOperator
getElements, getSecondOperand, isDifferentiable, isExpandable, resetNumDiff, resetNumEval, setIndex, setNumberOfIndependents, setSecondOperand
 
Methods inherited from class org.jscience.mathematics.analysis.expressions.OperatorExpression
contains, getFirstOperand, isolate, setFirstOperand
 
Methods inherited from class java.lang.Object
clone, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
 
Methods inherited from interface org.jscience.mathematics.analysis.expressions.NumericalDifferentiable
resetNumDiff, resetNumEval, setIndex, setNumberOfIndependents
 





Constructor Detail



Subtraction
public Subtraction(Expression leftOp,
                   Expression rightOp)

Creates an Subtraction object that represent the subtraction
 between two Expression objects.


Parameters:
leftOp - The lefthand side operand Expression object.
rightOp - The righthand side operand Expression object.





Method Detail



eval
public double eval()

DOCUMENT ME!


Specified by:
eval in interface Expression



Returns:
DOCUMENT ME!





diff
public Expression diff(NamedDataExpression x)

DOCUMENT ME!


Specified by:
diff in interface Expression
Overrides:
diff in class BinaryOperator


Parameters:
x - DOCUMENT ME!
Returns:
DOCUMENT ME!





numDiff
public double numDiff(int i)

DOCUMENT ME!


Specified by:
numDiff in interface NumericalDifferentiable


Parameters:
i - DOCUMENT ME!
Returns:
DOCUMENT ME!





numEval
public double numEval()

DOCUMENT ME!


Specified by:
numEval in interface NumericalDifferentiable



Returns:
DOCUMENT ME!





replace
public Expression replace(Expression a,
                          Expression b)

DOCUMENT ME!


Specified by:
replace in interface Expression


Parameters:
a - DOCUMENT ME!
b - DOCUMENT ME!
Returns:
DOCUMENT ME!





equals
public boolean equals(java.lang.Object e)

DOCUMENT ME!


Overrides:
equals in class java.lang.Object


Parameters:
e - DOCUMENT ME!
Returns:
DOCUMENT ME!





toString
public java.lang.String toString()

DOCUMENT ME!


Overrides:
toString in class java.lang.Object



Returns:
DOCUMENT ME!





toJava
public java.lang.String toJava()

DOCUMENT ME!


Specified by:
toJava in interface Expression
Specified by:
toJava in interface JavaExpressible



Returns:
DOCUMENT ME!





toTaylorMap
public java.lang.String toTaylorMap()

DOCUMENT ME!


Specified by:
toTaylorMap in interface Expression
Overrides:
toTaylorMap in class BinaryOperator



Returns:
DOCUMENT ME!





optimize
public Expression optimize()

DOCUMENT ME!


Specified by:
optimize in interface Expression



Returns:
DOCUMENT ME!





isolate
public Expression isolate(Expression f,
                          Expression e)

DOCUMENT ME!


Specified by:
isolate in interface Expression
Overrides:
isolate in class OperatorExpression


Parameters:
f - DOCUMENT ME!
e - DOCUMENT ME!
Returns:
DOCUMENT ME!





factor
public Expression factor(Expression e)

DOCUMENT ME!


Specified by:
factor in interface Expression
Overrides:
factor in class OperatorExpression


Parameters:
e - DOCUMENT ME!
Returns:
DOCUMENT ME!





toXML
public java.lang.String toXML()

DOCUMENT ME!


Specified by:
toXML in interface Expression
Specified by:
toXML in interface XMLExpressible



Returns:
DOCUMENT ME!