Summary
The forward Fast Fourier Transformation (FFT) from real to complex.
Class
TDenseMtxVec
Declaration
Function FFTFromReal(Vec: TMtxVec; VecIndex, Index, Len: integer): TMtxVec;
Description
Calculate the FFT from real 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
Complex properties of the calling object must be set explicitly. An exception is raised if
ConditionCheck is True and Vec is not complex or if array borders are overrun.
This is the indexed version of the FFT routine TVec.FFTFromReal. Look there for more information on FFT parameters and storage requirements.
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