Native |
This class provides reference methods related to Fourier transformation that are slow and not very accurate.
Do not use them except for comparism and testing purposes!
The direction of the forward Fourier transform will be defined here as reference for all other Fourier methods as
multiplication of f(x)*exp(iwt), i.e. as (wt) having a positive sign (forward) and wt having a negative sign (backward).
Inheritance HierarchyNamespace: Altaxo.Calc.Fourier
Assembly: AltaxoCore (in AltaxoCore.dll) Version: 4.8.3179.0 (4.8.3179.0)
SyntaxC#
public class NativeFourierMethods
The NativeFourierMethods type exposes the following members.
Constructors| Name | Description | |
|---|---|---|
 | NativeFourierMethods | Initializes a new instance of the NativeFourierMethods class |
Methods| Name | Description | |
|---|---|---|
 | ConvolutionCyclic(Double, Double, Double, Int32) | Performes a cyclic convolution between array arr1 and arr2 and stores the result in resultarr. Resultarr must be different from the other two arrays. |
| ConvolutionCyclic(Double, Double, Double, Double, Double, Double, Int32) | Performes a cyclic convolution between splitted complex arrays and stores the result in resultarr. Resultarr must be different from the input arrays. |
| ConvolutionNonCyclic | Performes a non-cyclic convolution between array arr1 and arr2 and stores the result in resultarr. Resultarr must be different from the other two arrays. |
| CorrelationCyclic(Double, Double, Double, Int32) | Performes a cyclic correlation between array arr1 and arr2 and stores the result in resultarr. Resultarr must be different from the other two arrays. |
| CorrelationCyclic(Double, Double, Double, Double, Double, Double, Int32) | Performes a cyclic correlation between splitted complex arrays and stores the result in resultarr. Resultarr must be different from the input arrays. |
| CorrelationNonCyclic | Performes a non-cyclic correlation between array arr1 and arr2 and stores the result in resultarr. Resultarr must be different from the other two arrays. |
| Equals | Determines whether the specified object is equal to the current object. (Inherited from Object) |
 | Finalize | Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object) |
| FourierTransformation(Double, FourierDirection) | Performs a inline native fouriertransformation of real and imaginary part arrays. |
| FourierTransformation(Double, Double, FourierDirection) | Performs a inline native fouriertransformation of real and imaginary part arrays. |
| FourierTransformation(Double, Double, Int32, FourierDirection) | Performs a native fouriertransformation of a real value array. |
| FourierTransformation(Double, Complex, Int32, FourierDirection) | Performs a native fouriertransformation of a real value array. |
| FourierTransformation(Double, Double, Double, Double, Int32, FourierDirection) | Performs a native Fourier transformation of a complex value array. |
| GetHashCode | Serves as the default hash function. (Inherited from Object) |
| GetType | Gets the Type of the current instance. (Inherited from Object) |
| MemberwiseClone | Creates a shallow copy of the current Object. (Inherited from Object) |
| ToString | Returns a string that represents the current object. (Inherited from Object) |
See Also