Package org.jamdev.jpamutils.spectrogram

Class Complex

java.lang.Object
org.jamdev.jpamutils.spectrogram.Complex
All Implemented Interfaces:
Serializable, Cloneable
public class Complex
extends Object
implements Cloneable, Serializable
Class definition for a Complex number type.
Author:
Paul Redmond / Doug Gillespie
See Also:
Serialized Form

  • Field Details

  • Constructor Details

    • Complex

      public Complex()

    • Complex

      public Complex​(double real, double imag)
      Constructor
      Parameters:
      real - real part
      imag - imaginary part

    • Complex

      public Complex​(Complex a)
      Constructor
      Parameters:
      a - Complex Number (to clone)

  • Method Details

    • clone

      public Complex clone()
      Overrides:
      clone in class Object

    • ang

      public double ang()
      Gets the angle of a complex number
      Returns:
      angle in radians

    • magsq

      public double magsq()
      Gets the squared magnitude of a complex number
      Returns:
      squared magnitude

    • norm

      @Deprecated public double norm()
      Deprecated.
      Gets the squared magnitude of a complex number
      Returns:
      squared magnitude

    • mag

      public double mag()
      Gets the magnitude of a complex number
      Returns:
      magnitude

    • sqrt

      public Complex sqrt()
      Gets the square root of a Complex number
      Returns:
      square root of the Complex number

    • pow

      public Complex pow​(double f)
      Raises a complex number to a scalar power.
      Parameters:
      f - power to raise number to
      Returns:
      new Complex number

    • exp

      public Complex exp()
      A new Complex object whose value is the complex exponential of this
      Returns:

    • plus

      public Complex plus​(Complex b)
      Adds a complex number
      Parameters:
      b - Complex number to add
      Returns:
      new Complex number

    • assign

      public void assign​(Complex b)
      Assign new real and imaginary values to an existing Complex number
      Parameters:
      b - Complex number to take values from

    • assign

      public void assign​(double real, double imag)
      Assign new real and imaginary values to an existing Complex number
      Parameters:
      real - new real part
      imag - new imaginary part

    • plus

      public Complex plus​(double b)
      Add a real number to a complex number
      Parameters:
      b - real number
      Returns:
      new Complex number

    • minus

      public Complex minus​(Complex b)
      Subtract a real number from a complex number
      Parameters:
      b - real number
      Returns:
      new Complex number

    • minus

      public Complex minus​(double b)
      Subtract a real number from a complex number
      Parameters:
      b - real number
      Returns:
      new Complex number

    • times

      public Complex times​(double b)
      Multiply a complex number by a real
      Parameters:
      b - real number
      Returns:
      new Complex number

    • times

      public Complex times​(Complex b)
      Multiply a complex number by another complex number
      Parameters:
      b - complex number
      Returns:
      new complex number

    • internalTimes

      public void internalTimes​(double b)
      Multiply a complex numbers real and imaginary parts by a real number
      Parameters:
      b - real number

    • internalTimes

      public void internalTimes​(Complex b)
      Multiply a complex numbers real and imaginary parts by a complex number
      Parameters:
      b - complex number

    • conj

      public Complex conj()

    • conj

      public static void conj​(Complex x)
      Converts a number to it's own complex conjugate
      Parameters:
      x -

    • isNaN

      public boolean isNaN()
      Returns true if either the real or imaginary part is a Not-a-Number (NaN) value, false otherwise
      Returns:
      true if either part of the number is NaN

    • isInfinite

      public boolean isInfinite()
      Returns true if either the real or imaginary part is infinite, false otherwise
      Returns:
      true if either part of the number is infinite

    • createComplexArray

      public static Complex[] createComplexArray​(double[] doubleArray)
      Create a complex array from a double array
      Parameters:
      doubleArray - doubel array
      Returns:
      complex array

    • allocateComplexArray

      public static Complex[] allocateComplexArray​(int n)
      Allocate a new complex array in which each element has been created and it's contents set to 0 +i0;
      Parameters:
      n - length of array
      Returns:
      Complex array of length n

    • allocateComplexArray

      public static Complex[][] allocateComplexArray​(int n, int m)

    • zeroComplexArray

      public static void zeroComplexArray​(Complex[] array)
      Sets all the elements of a complex array to zero
      Parameters:
      array - Complex Array

    • toString

      public String toString()
      Overrides:
      toString in class Object

    • toString

      public String toString​(String format)
      Parameters:
      format - such as %2.2f
      Returns:

    • toString

      public String toString​(int decimalPlaces)

    • getConstructorCalls

      public static long getConstructorCalls()