Extreme Optimization™: Complexity made simple.

Math and Statistics
Libraries for .NET
  • Home
  • Features
    • Math Library
    • Vector and Matrix Library
    • Statistics Library
    • Performance
    • Usability
  • Documentation
    • Introduction
    • Math Library User's Guide
    • Vector and Matrix Library User's Guide
    • Data Analysis Library User's Guide
    • Statistics Library User's Guide
    • Reference
  • Resources
    • Downloads
    • QuickStart Samples
    • Sample Applications
    • Frequently Asked Questions
    • Technical Support
  • Blog
  • Order
  • Company
    • About us
    • Testimonials
    • Customers
    • Press Releases
    • Careers
    • Partners
    • Contact us
Introduction
Deployment Guide
Configuration
Using Parallelism
Expand Mathematics Library User's GuideMathematics Library User's Guide
Expand Vector and Matrix Library User's GuideVector and Matrix Library User's Guide
Expand Data Analysis Library User's GuideData Analysis Library User's Guide
Expand Statistics Library User's GuideStatistics Library User's Guide
Expand Data Access Library User's GuideData Access Library User's Guide
Expand ReferenceReference
  • Extreme Optimization
    • Features
    • Solutions
    • Documentation
    • QuickStart Samples
    • Sample Applications
    • Downloads
    • Technical Support
    • Download trial
    • How to buy
    • Blog
    • Company
    • Resources
  • Documentation
    • Introduction
    • Deployment Guide
    • Configuration
    • Using Parallelism
    • Mathematics Library User's Guide
    • Vector and Matrix Library User's Guide
    • Data Analysis Library User's Guide
    • Statistics Library User's Guide
    • Data Access Library User's Guide
    • Reference
  • Reference
    • Extreme
    • Extreme.Collections
    • Extreme.Data
    • Extreme.Data.Json
    • Extreme.Data.Matlab
    • Extreme.Data.R
    • Extreme.Data.Stata
    • Extreme.Data.Text
    • Extreme.DataAnalysis
    • Extreme.DataAnalysis.Linq
    • Extreme.Mathematics
    • Extreme.Mathematics.Algorithms
    • Extreme.Mathematics.Calculus
    • Extreme.Mathematics.Calculus.OrdinaryDifferentialEquations
    • Extreme.Mathematics.Curves
    • Extreme.Mathematics.Curves.Nonlinear
    • Extreme.Mathematics.Distributed
    • Extreme.Mathematics.Distributed.Cuda
    • Extreme.Mathematics.EquationSolvers
    • Extreme.Mathematics.FSharp
    • Extreme.Mathematics.Generic
    • Extreme.Mathematics.Generic.LinearAlgebra
    • Extreme.Mathematics.Generic.LinearAlgebra.Implementation
    • Extreme.Mathematics.Generic.LinearAlgebra.Providers
    • Extreme.Mathematics.Generic.SignalProcessing
    • Extreme.Mathematics.Implementation
    • Extreme.Mathematics.LinearAlgebra
    • Extreme.Mathematics.LinearAlgebra.Complex
    • Extreme.Mathematics.LinearAlgebra.Complex.Decompositions
    • Extreme.Mathematics.LinearAlgebra.Implementation
    • Extreme.Mathematics.LinearAlgebra.IO
    • Extreme.Mathematics.LinearAlgebra.IterativeSolvers
    • Extreme.Mathematics.LinearAlgebra.IterativeSolvers.Preconditioners
    • Extreme.Mathematics.LinearAlgebra.Providers
    • Extreme.Mathematics.LinearAlgebra.Sparse
    • Extreme.Mathematics.Optimization
    • Extreme.Mathematics.Optimization.Genetic
    • Extreme.Mathematics.Optimization.LineSearches
    • Extreme.Mathematics.Random
    • Extreme.Mathematics.SignalProcessing
    • Extreme.Numerics.FSharp
    • Extreme.Statistics
    • Extreme.Statistics.Distributions
    • Extreme.Statistics.IO
    • Extreme.Statistics.Linq
    • Extreme.Statistics.Multivariate
    • Extreme.Statistics.Random
    • Extreme.Statistics.Tests
    • Extreme.Statistics.TimeSeriesAnalysis
  • Extreme.Mathematics.SignalProcessing
    • ComplexConjugateSignalMatrix Class
    • ComplexConjugateSignalMatrix(T) Class
    • ComplexConjugateSignalVector Class
    • ComplexConjugateSignalVector(T) Class
    • Fft Class
    • Fft(T) Class
    • Fft2D Class
    • Fft2D(T) Class
    • FftBase Class
    • FftBase(T) Class
    • FftDomain Enumeration
    • FftProvider Class
    • FftProvider(T) Class
    • Filter Class
    • ManagedFft Class
    • ManagedFft2D Class
    • ManagedFft2DOfSingle Class
    • ManagedFftOfSingle Class
    • ManagedFftProvider Class
    • ManagedFftProviderOfSingle Class
    • Padding Enumeration
    • RealFftFormat Enumeration
    • SingleComplexConjugateSignalMatrix Class
    • SingleComplexConjugateSignalVector Class
    • SingleFft Class
    • SingleFft2D Class
    • SingleFftBase Class
    • SingleFftProvider Class
    • SingleManagedFft Class
    • SingleManagedFft2D Class
    • SingleManagedFftProvider Class
    • Smoothing Class
    • WindowFunction Class
    • WindowFunctions Class
    • WindowSampling Enumeration
  • Fft2D Class
    • Fft2D Constructor
    • Fft2D Properties
    • Methods
  • Methods
    • BackwardTransform Method Overloads
    • BackwardTransformInPlace Method Overloads
    • CreateComplex Method
    • CreateReal Method
    • ForwardTransform Method Overloads
    • ForwardTransformInPlace Method Overloads
  • BackwardTransform Method Overloads
    • BackwardTransform Method (ComplexConjugateSignalMatrix)
    • BackwardTransform Method (ComplexMatrix)
    • BackwardTransform Method (Array2D(DoubleComplex), Array2D(DoubleComplex))
    • BackwardTransform Method (Array2D(DoubleComplex), Array2D(Double))
    • BackwardTransform Method (ComplexConjugateSignalMatrix, DenseMatrix)
    • BackwardTransform Method (ComplexDenseMatrix, ComplexDenseMatrix)
    • BackwardTransform Method (ComplexMatrix, ComplexMatrix)
    • BackwardTransform Method (ComplexMatrix, Matrix)
    • BackwardTransform Method (ComplexMatrix, Matrix, RealFftFormat)
  • BackwardTransform Method (ComplexMatrix)
Fft2DBackwardTransform Method (ComplexMatrix)Extreme Optimization Numerical Libraries for .NET Professional
Computes the discrete Fourier transform of a complex signal and returns the result..

Namespace: Extreme.Mathematics.SignalProcessing
Assembly: Extreme.Numerics.Net40 (in Extreme.Numerics.Net40.dll) Version: 6.0.16073.0 (6.0.16312.0)
Syntax
C#
VB
C++
F#
Copy
public ComplexDenseMatrix BackwardTransform(
	ComplexMatrix input
)
Public Function BackwardTransform ( 
	input As ComplexMatrix
) As ComplexDenseMatrix
public:
ComplexDenseMatrix^ BackwardTransform(
	ComplexMatrix^ input
)
member BackwardTransform : 
        input : ComplexMatrix -> ComplexDenseMatrix

Parameters

input
Type: Extreme.MathematicsComplexMatrix
A DoubleComplex matrix containing the input signal.

Return Value

Type: ComplexDenseMatrix
A ComplexDenseMatrix containing the transformed signal.
Version Information

Numerical Libraries

Supported in: 5.x, 4.x
See Also

Reference

Fft2D Class
BackwardTransform Overload
Extreme.Mathematics.SignalProcessing Namespace

Copyright (c) 2004-2016 ExoAnalytics Inc.

Send comments on this topic to support@extremeoptimization.com

Copyright © 2004-2018, Extreme Optimization. All rights reserved.
Extreme Optimization, Complexity made simple, M#, and M Sharp are trademarks of ExoAnalytics Inc.
Microsoft, Visual C#, Visual Basic, Visual Studio, Visual Studio.NET, and the Optimized for Visual Studio logo
are registered trademarks of Microsoft Corporation.