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ExternalFunctions

Guides

  • External Functions

Symbols

  • AcentricFactor
  • DiscreteCosineTransform
  • DiscreteSineTransform
  • FastFourierTransform
  • InverseDiscreteCosineTransform
  • InverseDiscreteSineTransform
  • InverseFastFourierTransform
  • LeeKeslerOmega
  • LoadExternalFunction
  • MatrixBandwidth
  • StielPolarFactor
ArnoudBuzing`ExternalFunctions`
InverseFastFourierTransform
​
InverseFastFourierTransform[list]
computes the inverse fast Fourier transform of
list
.
​
Details and Options

Examples  
(1)
Basic Examples  
(1)
Compute an inverse fast Fourier transform:
In[1]:=
ifft=
InverseFastFourierTransform
[{1,2,3}]
Out[1]=
NumericArray
Type: ComplexReal64
Dimensions: {3}

Convert the
NumericArray
to a
List
:
In[2]:=
Normal[ifft]
Out[2]=
{2.+0.,-0.5-0.288675,-0.5+0.288675}
Compare to
InverseFourier
with the given
FourierParameters
:
In[3]:=
InverseFourier[{1,2,3},FourierParameters{1,1}]
Out[3]=
{2.+0.,-0.5+0.288675,-0.5-0.288675}
SeeAlso
""

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