org.lsmp.djep.sjep
Class Monomial

java.lang.Object
  org.lsmp.djep.sjep.AbstractPNode
      org.lsmp.djep.sjep.Monomial

All Implemented Interfaces:

PNodeI

public class Monomial
extends AbstractPNode

Represents an imutable monomial a x^i * y^j * ... * z^k, a constant.

Author:

Rich Morris Created on 14-Dec-2004

Field Summary

Fields inherited from class org.lsmp.djep.sjep.AbstractPNode

pc

Method Summary

PNodeI	add(PNodeI node) Adds a node to this one.
int	compareTo(PNodeI node) Compare this to argument.
PNodeI	div(PNodeI node) Divides this by the argument.
boolean	equals(PNodeI node) True is nodes represent the same parse trees
PNodeI	expand() complete expansion. (1+x)^2 --> 1+2*x+x^2
PNodeI	invert() inverts node i.e. 1/x
PNodeI	mul(PNodeI node) Multiplies this by the argument.
PNodeI	negate() negates node i.e.
PNodeI	pow(PNodeI pow) Raise this to the argument.
PNodeI	sub(PNodeI node) Subtracts the argument from this.
Node	toNode() Converts the node to standard JEP format.
java.lang.String	toString() Produces a string representation of the argument.

Methods inherited from class org.lsmp.djep.sjep.AbstractPNode

isOne, isZero

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.lsmp.djep.sjep.PNodeI

equals

Method Detail

mul

public PNodeI mul(PNodeI node)
           throws ParseException

Description copied from interface: PNodeI

Multiplies this by the argument.

Specified by:

mul in interface PNodeI

Overrides:

mul in class AbstractPNode

Throws:

ParseException

div

public PNodeI div(PNodeI node)
           throws ParseException

Description copied from interface: PNodeI

Divides this by the argument.

Specified by:

div in interface PNodeI

Overrides:

div in class AbstractPNode

Throws:

ParseException

pow

public PNodeI pow(PNodeI pow)
           throws ParseException

Description copied from interface: PNodeI

Raise this to the argument.

Specified by:

pow in interface PNodeI

Overrides:

pow in class AbstractPNode

Throws:

ParseException

negate

public PNodeI negate()
              throws ParseException

Description copied from interface: PNodeI

negates node i.e. -x

Specified by:

negate in interface PNodeI

Overrides:

negate in class AbstractPNode

Throws:

ParseException

invert

public PNodeI invert()
              throws ParseException

Description copied from interface: PNodeI

inverts node i.e. 1/x

Specified by:

invert in interface PNodeI

Overrides:

invert in class AbstractPNode

Throws:

ParseException

add

public PNodeI add(PNodeI node)
           throws ParseException

Description copied from interface: PNodeI

Adds a node to this one.

Specified by:

add in interface PNodeI

Overrides:

add in class AbstractPNode

Throws:

ParseException

sub

public PNodeI sub(PNodeI node)
           throws ParseException

Description copied from interface: PNodeI

Subtracts the argument from this.

Specified by:

sub in interface PNodeI

Overrides:

sub in class AbstractPNode

Throws:

ParseException

equals

public boolean equals(PNodeI node)

Description copied from interface: PNodeI

True is nodes represent the same parse trees

Specified by:

equals in interface PNodeI

Overrides:

equals in class AbstractPNode

compareTo

public int compareTo(PNodeI node)

Compare this to argument. x < y 2 x < 3 x x < x^2 x^2 < x^3 x < x y TODO x y < x^2

Specified by:

compareTo in interface PNodeI

Overrides:

compareTo in class AbstractPNode

Returns:

this < arg ---> -1, this > arg ---> 1

toString

public java.lang.String toString()

Description copied from interface: PNodeI

Produces a string representation of the argument.

Specified by:

toString in interface PNodeI

Overrides:

toString in class java.lang.Object

toNode

public Node toNode()
            throws ParseException

Description copied from interface: PNodeI

Converts the node to standard JEP format.

Throws:

ParseException

expand

public PNodeI expand()
              throws ParseException

Description copied from interface: PNodeI

complete expansion. (1+x)^2 --> 1+2*x+x^2

Throws:

ParseException