Overload List
| # | Signature | Description |
|---|---|---|
| 1 | function IFFT2D(const Mtx: TMtx; NoScale: Boolean): TMtx; | Inverse two-dimensional Fast Fourier Transformation from complex to complex. |
| 2 | function IFFT2D(NoScale: Boolean): TMtx; | Inverse two-dimensional Fast Fourier Transformation from complex to complex. |
Overload 1: function IFFT2D(const Mtx: TMtx; NoScale: Boolean): TMtx;
Inverse two-dimensional Fast Fourier Transformation from complex to complex.
| # | Name | Type | Description |
|---|---|---|---|
| 1 | Mtx | TMtx | |
| 2 | NoScale | Boolean |
Result: stored in self (calling object), returns self for chaining
Transformation is applied on Mtx matrix and results are saved in the calling matrix. The source matrix must be complex. If source matrix is real, an exception will be raised. The source matrix is not changed. Calling matrix will be complex and will have the same size as the source matrix. NoScale parameter allows the scaling to be turned off.
var a,b: Matrix;
begin
a.SetIt (2,4,False,
[1, 2, 3, 4,
-5, 6,-7, 8] );
a.ExtendToComplex;
b.IFFT2D(a);
// result will be
// [(1.5, 0), (0, -0.5), (-3.5, 0), (0, 0.5),
// (1, 0), (-0.5, 0), (3, 0), (-0.5, 0) ]
end;Overload 2: function IFFT2D(NoScale: Boolean): TMtx;
Inverse two-dimensional Fast Fourier Transformation from complex to complex.
| # | Name | Type | Description |
|---|---|---|---|
| 1 | NoScale | Boolean |
Result: stored in self (calling object), returns self for chaining
Transformation is applied in-place. Source matrix must be complex. If source matrix is real, an exception will be raised. result matrix will be complex. Size of the calling matrix is not changed. NoScale parameter allows the scaling to be turned off.
var a: Matrix;
begin
a.SetIt (2,4,False,
[1, 2, 3, 4,
-5, 6,-7, 8] );
a.ExtendToComplex;
a.IFFT2D;
// result will be
// [(1.5, 0), (0, -0.5), (-3.5, 0), (0, 0.5),
// [1, 0), (-0.5, 0), (3, 0), (-0.5, 0) ]
end;