lab.art

Class Sine

java.lang.Object

lab.art.Expression

lab.art.UnaryExpression

lab.art.Sine

public class Sine
extends UnaryExpression

This class represents the sine expression.

Constructor Summary

Constructors

Constructor and Description
Sine(Expression expression) Initializes this sine expression with the given subexpression.

Method Summary

Methods

Modifier and Type	Method and Description
double	evaluate(double x, double y) Evaluates this sine expression at the given x- and y-coordinate.
String	toString() Returns a string representation of this sine expression.

Methods inherited from class lab.art.UnaryExpression

equals, evaluate, hashCode, toString

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

Sine

public Sine(Expression expression)

Initializes this sine expression with the given subexpression.

Parameters:

expression - the subexpression.

Precondition:

expression != null

Method Detail

evaluate

public double evaluate(double x,
              double y)

Evaluates this sine expression at the given x- and y-coordinate.

Specified by:

evaluate in class Expression

Parameters:

x - the x-coordinate.

y - the y-coordinate.

Precondition:

x >= -1 && x <= 1, y >= -1 && y <= 1

Returns:

the value of this sine expression at the given x- and y-coordinate.

toString

public String toString()

Returns a string representation of this sine expression. The string consists of "sin(pi * " followed by the string representation of the subexpression, followed by ")".

Overrides:

toString in class Object

Returns:

string representation of this sine expression.