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TDenseMtxVec.IFFTToReal Method
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The inverse FFT from complex to real.

Syntax
C#
Visual Basic
public TMtxVec IFFTToReal([In] TMtxVec Vec, int VecIndex, int Index, int Len, bool NoScale);
Remarks

Calculate the inverse FFT from Vec elements [VecIndex]..[VecIndex+Len-1] and store the results in the calling object elements [Index]..[Index+Len-1]. The Len parameter must not be a power of two. Size and TMtxVec.Complex properties of the calling object must be set explicitly. An exception is raised if TMtxVecBase.ConditionCheckConditionCheckis True and array borders are overrun.  

This is the indexed version of the FFT routine TVec.IFFTToReal. Look there for more information on FFT parameters and storage requirements.

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