Building Parsers with Java

sjm.examples.sling
Class Tan

java.lang.Object
  |
  +--sjm.examples.sling.SlingFunction
        |
        +--sjm.examples.sling.Tan

public class Tan
extends SlingFunction

This class wraps a tan function around another source function.

The tan function is the ratio of a sling stone's y component to its x component.


Fields inherited from class sjm.examples.sling.SlingFunction
source
 
Constructor Summary
Tan()
          Constructs tan(t).
Tan(SlingFunction source)
          Constructs a function object that wraps a tan function around the given source function.
 
Method Summary
 Point f(double t)
          Returns, essentially, tan(source.f(t)).
 java.lang.String toString()
          Returns a string representation of this function.
 
Methods inherited from class sjm.examples.sling.SlingFunction
eval, extrema, fresh
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
 

Constructor Detail

Tan

public Tan()
Constructs tan(t).

Tan

public Tan(SlingFunction source)
Constructs a function object that wraps a tan function around the given source function.
Method Detail

f

public Point f(double t)
Returns, essentially, tan(source.f(t)).
Overrides:
f in class SlingFunction
Parameters:
t - a number that represents how far along a plot is, and thus tells which point to return
Returns:
a new point: (t, tan(source.f(t).y))
See Also:
Abs, Abs.f(double)

toString

public java.lang.String toString()
Returns a string representation of this function.
Overrides:
toString in class java.lang.Object

by Steve Metsker