# Function ifft Calculate N-dimensional inverse fourier transform ## Syntax ```js math.ifft(arr) ``` ### Parameters Parameter | Type | Description --------- | ---- | ----------- `arr` | Array | Matrix | An array or matrix ### Returns Type | Description ---- | ----------- Array | Matrix | N-dimensional fourier transformation of the array ### Throws Type | Description ---- | ----------- ## See also [fft](fft.md)