org.openuat.features
Class Complex

java.lang.Object
  org.openuat.features.Complex

public class Complex
extends java.lang.Object

Data type for complex numbers. The data type is "immutable" so once you create and initialize a complex object, you cannot change its value. The "final" keyword when declaring re and im enforces this rule, making it a compile-time error to change the .re or .im fields after they've been initialized.

Author:

Adapted by Rene Mayrhofer, very heavily based on code by Robert Sedgewick and Kevin Wayne

Constructor Summary

Complex(double real, double imag)
Create a new object with the given real and imaginary parts.

Method Summary

double	abs() return |this|
Complex	conjugate() return a new object whose value is the conjugate of this.
double	getIm() Return the imaginary part.
double	getRe() Return the real part.
static void	main(java.lang.String[] args)
Complex	minus(Complex b) return a new object whose value is (this - b).
Complex	plus(Complex b) return a new object whose value is (this + b).
Complex	times(Complex b) return a new object whose value is (this * b).
Complex	times(double alpha) return a new object whose value is (this * alpha).
java.lang.String	toString() return a string representation of the invoking object.

Methods inherited from class java.lang.Object

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

Constructor Detail

Complex

public Complex(double real,
               double imag)

Create a new object with the given real and imaginary parts.

Method Detail

toString

public java.lang.String toString()

return a string representation of the invoking object.

Overrides:

toString in class java.lang.Object

abs

public double abs()

return |this|

plus

public Complex plus(Complex b)

return a new object whose value is (this + b).

minus

public Complex minus(Complex b)

return a new object whose value is (this - b).

times

public Complex times(Complex b)

return a new object whose value is (this * b).

times

public Complex times(double alpha)

return a new object whose value is (this * alpha).

conjugate

public Complex conjugate()

return a new object whose value is the conjugate of this.

getRe

public double getRe()

Return the real part.

getIm

public double getIm()

Return the imaginary part.

main

public static void main(java.lang.String[] args)