Package org.jfree.data.function
Class PowerFunction2D
- java.lang.Object
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- org.jfree.data.function.PowerFunction2D
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- All Implemented Interfaces:
java.io.Serializable
,Function2D
public class PowerFunction2D extends java.lang.Object implements Function2D, java.io.Serializable
A function of the form y = a * x ^ b.- See Also:
- Serialized Form
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Constructor Summary
Constructors Constructor Description PowerFunction2D(double a, double b)
Creates a new power function.
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description boolean
equals(java.lang.Object obj)
Tests this function for equality with an arbitrary object.double
getA()
Returns the 'a' coefficient that was specified in the constructor.double
getB()
Returns the 'b' coefficient that was specified in the constructor.double
getValue(double x)
Returns the value of the function for a given input ('x').int
hashCode()
Returns a hash code for this instance.
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Method Detail
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getA
public double getA()
Returns the 'a' coefficient that was specified in the constructor.- Returns:
- The 'a' coefficient.
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getB
public double getB()
Returns the 'b' coefficient that was specified in the constructor.- Returns:
- The 'b' coefficient.
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getValue
public double getValue(double x)
Returns the value of the function for a given input ('x').- Specified by:
getValue
in interfaceFunction2D
- Parameters:
x
- the x-value.- Returns:
- The value.
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equals
public boolean equals(java.lang.Object obj)
Tests this function for equality with an arbitrary object.- Overrides:
equals
in classjava.lang.Object
- Parameters:
obj
- the object (null
permitted).- Returns:
- A boolean.
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hashCode
public int hashCode()
Returns a hash code for this instance.- Overrides:
hashCode
in classjava.lang.Object
- Returns:
- A hash code.
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