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Class JSci.maths.FourierMath 

java.lang.Object
   |
   +----JSci.maths.AbstractMath
           |
           +----JSci.maths.FourierMath
public final class FourierMath
extends AbstractMath
implements NumericalConstants
The Fourier math library. This class cannot be subclassed or instantiated because all methods are static.

Method Index

o inverseTransform(Complex[])
Inverse Fourier transform.
o inverseTransform(double[])
Inverse Fourier transform.
o sort(Complex[])
Sorts the output from the Fourier transfom methods into ascending frequency/time order.
o transform(Complex[])
Fourier transform.
o transform(double[])
Fourier transform.

Methods

o transform 
 public static Complex[] transform(Complex data[])
Fourier transform.

Returns:
an array containing positive frequencies in ascending order followed by negative frequencies in ascending order
o transform 
 public static Complex[] transform(double data[])
Fourier transform.

Returns:
an array containing positive frequencies in ascending order followed by negative frequencies in ascending order
o inverseTransform 
 public static Complex[] inverseTransform(Complex data[])
Inverse Fourier transform.

Returns:
an array containing the positive time part of the signal followed by the negative time part
o inverseTransform 
 public static Complex[] inverseTransform(double data[])
Inverse Fourier transform.

Returns:
an array containing the positive time part of the signal followed by the negative time part
o sort 
 public static Complex[] sort(Complex output[])
Sorts the output from the Fourier transfom methods into ascending frequency/time order. 

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