Returns the two-dimensional discrete Fourier transform (DFT) of x. The DFT is computed with a fast Fourier transform (FFT) algorithm. The result has the same size as x.
Syntax
fft2d(x)
Types
| Variable Name | Value Type | Variable Type | ||
|---|---|---|---|---|
| Argument: | x | real, complex | matrix | |
| Result: | z | real, complex | matrix | |
Calculator Input
Use the button to complete the operation.
Example
| ID | Description | Type | Value | Expression | |
|---|---|---|---|---|---|
| x | Argument | REAL MATRIX |
| [[1,2],[3,4]] | |
| z | Result | REAL MATRIX |
| fft2d(x) | |
