Overload List
| # | Signature | Description |
|---|---|---|
| 1 | TMtxVec *IFFT(TMtxVec *Vec, int VecIndex, int Index, int Len, bool NoScale = false) const; | The inverse FFT from complex to complex. |
| 2 | TVec *IFFT(bool NoScale = false) const; | The inverse backward FFT from complex to complex. |
| 3 | TVec *IFFT(TVec *Vec, bool NoScale = false) const; | Calculate the inverse FFT from all Vec elements and store the results in the calling vector. |
Overload 1: TMtxVec *IFFT(TMtxVec *Vec, int VecIndex, int Index, int Len, bool NoScale = false) const;
The inverse FFT from complex to complex.
| # | Name | Type | Description |
|---|---|---|---|
| 1 | Vec | TMtxVec * | |
| 2 | VecIndex | int | |
| 3 | Index | int | |
| 4 | Len | int | |
| 5 | NoScale = false | bool |
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 be the power of two. Size and Vector::Complex properties of the calling vector must be set explicitly. An exception is raised if Vector::ConditionCheck is True and array borders are overrun.
Note
This is the indexed version of the FFT routine TVec::IFFT. Look there For more information on FFT parameters and storage requirements.
Overload 2: TVec *IFFT(bool NoScale = false) const;
The inverse backward FFT from complex to complex.
| # | Name | Type | Description |
|---|---|---|---|
| 1 | NoScale = false | bool |
Calculates the inverse (backward) Fast Fourier Transformation (FFT) from complex to complex for all calling vector elements in-place. If the NoScale parameter is true, then no scaling is performed for the calling vector. The results can be erroneous if overflow or underflow occurs.
Overload 3: TVec *IFFT(TVec *Vec, bool NoScale = false) const;
Calculate the inverse FFT from all Vec elements and store the results in the calling vector.
| # | Name | Type | Description |
|---|---|---|---|
| 1 | Vec | TVec * | |
| 2 | NoScale = false | bool |
If the NoScale parameter is true then no scaling is performed for the calling vector. Vec Vector::Length must not be the power of two. Vector::Length and Vector::Complex properties of the calling vector are set implicitly to match Vec vector.