math.functions
Class Divide

java.lang.Object
  |
  +--math.objects.Expression
        |
        +--math.objects.BinaryExpression
              |
              +--math.functions.Divide

public class Divide

extends BinaryExpression

The class Divide is used to create mathematical Divide objects. It extends the BinaryExpressionclass.

Since:

JDK1.1

Author:

Peter Staab

, Pete Fox , both for the Mathematical Visualization Project for the Department of Applied Mathematics, University of Colorado at Boulder

Field Summary

Fields inherited from class math.objects.BinaryExpression

leftChild, rightChild

Constructor Summary

Divide(Expression left, Expression right)

Method Summary

java.lang.Object	clone() Make a deep clone of this.
Expression	differentiate(Variable var) A method that returns the derivative of the Divide object using the chain rule of differentiation
double	evaluate(VariableSet vars, double[] values) A method used to evaluate a Divide object given an ordered variable vector and a corresponding array of constant double values
Expression	evaluateVariables(VariableSet variables, double[] values) An method used to evaluate a Divide object containing multiple variables given only one variable name and one value
Expression	simplify() A method that returns a Expression representation of the Divide object's Children in a simplified form with redundant terms combined and terms multiplied by zero eliminated.
java.lang.String	toString() Overrides the toString() method of the Object class.

Methods inherited from class math.objects.BinaryExpression

getLeftChild, getRightChild, setLeftChild, setRightChild

Methods inherited from class math.objects.Expression

evaluate, evaluate, evaluate, evaluate, evaluate

Methods inherited from class java.lang.Object

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

Constructor Detail

Divide

public Divide(Expression left,
              Expression right)

Method Detail

clone

public java.lang.Object clone()

Make a deep clone of this.

Overrides:

clone in class java.lang.Object

Returns:

an object of type Divide.

toString

public java.lang.String toString()

Overrides the toString() method of the Object class. This gives a string represenation of the Symbolic Object.

Overrides:

toString in class java.lang.Object

Returns:

a string representation of the Add Object

evaluate

public double evaluate(VariableSet vars,
                       double[] values)
                throws java.lang.ArithmeticException,
                       IllegalEvaluationException,
                       VariableUndefinedException

A method used to evaluate a Divide object given an ordered variable vector and a corresponding array of constant double values

Specified by:

evaluate in class Expression

Parameters:

vars - the name of the VariableVector of Variables associated with the function.

Returns:

a double representing the value of the Expression for the entered value.

Throws:

java.lang.ArithmeticException - for NaN and Divide by Zero

IllegalEvaluationException - if an error occurs

VariableUndefinedException - for Variables not defined

evaluateVariables

public Expression evaluateVariables(VariableSet variables,
                                    double[] values)
                             throws java.lang.ArithmeticException,
                                    IllegalEvaluationException

An method used to evaluate a Divide object containing multiple variables given only one variable name and one value

Specified by:

evaluateVariables in class Expression

Parameters:

variables - a VariableSet value

values - a double[] value

Returns:

a Expression object representing the given Expression with one of it's variables evaluated for the given value.

Throws:

IllegalEvaluationException - if the number of variables do not equal the number of values.

java.lang.ArithmeticException - for NaN and Divide by Zero

differentiate

public Expression differentiate(Variable var)

A method that returns the derivative of the Divide object using the chain rule of differentiation

Specified by:

differentiate in class Expression

Parameters:

var - the variable of differentiation

Returns:

an Expression object representing the derivative of the Divide object

simplify

public Expression simplify()

A method that returns a Expression representation of the Divide object's Children in a simplified form with redundant terms combined and terms multiplied by zero eliminated.

Overrides:

simplify in class BinaryExpression

Returns:

an Expression object in a simplified form