org.jscience.mathematics.analysis.expressions
Class DataExpression

java.lang.Object
  org.jscience.mathematics.analysis.expressions.DataExpression

All Implemented Interfaces:

java.io.Serializable, Expression, JavaExpressible, XMLExpressible

Direct Known Subclasses:

Constant, NamedDataExpression

public abstract class DataExpression
extends java.lang.Object
implements Expression

Abstract class used as superclass for classes representing data. Here, data could refer to constants, variables or parameters.

See Also:

Constant, NamedDataExpression, Expression, Serialized Form

Field Summary

protected double

value The numerical value representing the DataExpression object.

Constructor Summary

DataExpression(double value)
Creates a DataExpression object and initializes the value that it represents.

Method Summary

boolean	contains(Expression e) DOCUMENT ME!
double	eval() DOCUMENT ME!
Expression	factor(Expression e) DOCUMENT ME!
java.util.List	getElements() DOCUMENT ME!
boolean	isDifferentiable() DOCUMENT ME!
boolean	isExpandable() DOCUMENT ME!
Expression	isolate(Expression e) DOCUMENT ME!
Expression	isolate(Expression f, Expression e) DOCUMENT ME!
void	setValue(double x) Sets the value of the DataExpression object.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.jscience.mathematics.analysis.expressions.Expression

diff, optimize, replace, toJava, toTaylorMap, toXML

Field Detail

value

protected double value

The numerical value representing the DataExpression object.

Since:

1.0

Constructor Detail

DataExpression

public DataExpression(double value)

Creates a DataExpression object and initializes the value that it represents.

Parameters:

value - The value the DataExpression object should hold.

Since:

1.0

Method Detail

setValue

public void setValue(double x)

Sets the value of the DataExpression object.

Parameters:

x - The value the DataExpression object should have.

Since:

1.0

See Also:

eval()

eval

public double eval()

DOCUMENT ME!

Specified by:

eval in interface Expression

Returns:

DOCUMENT ME!

isDifferentiable

public boolean isDifferentiable()

DOCUMENT ME!

Specified by:

isDifferentiable in interface Expression

Returns:

DOCUMENT ME!

See Also:

Expression.diff(NamedDataExpression)

isExpandable

public boolean isExpandable()

DOCUMENT ME!

Specified by:

isExpandable in interface Expression

Returns:

DOCUMENT ME!

getElements

public java.util.List getElements()

DOCUMENT ME!

Specified by:

getElements in interface Expression

Returns:

DOCUMENT ME!

contains

public boolean contains(Expression e)

DOCUMENT ME!

Specified by:

contains in interface Expression

Parameters:

e - DOCUMENT ME!

Returns:

DOCUMENT ME!

isolate

public Expression isolate(Expression e)

DOCUMENT ME!

Specified by:

isolate in interface Expression

Parameters:

e - DOCUMENT ME!

Returns:

DOCUMENT ME!

isolate

public Expression isolate(Expression f,
                          Expression e)

DOCUMENT ME!

Specified by:

isolate in interface Expression

Parameters:

f - DOCUMENT ME!

e - DOCUMENT ME!

Returns:

DOCUMENT ME!

factor

public Expression factor(Expression e)

DOCUMENT ME!

Specified by:

factor in interface Expression

Parameters:

e - DOCUMENT ME!

Returns:

DOCUMENT ME!