FFT API Reference

The fft module provides Fast Fourier Transform functions.

1D FFT

fft

Compute the one-dimensional discrete Fourier Transform.

pub fn fft(allocator: Allocator, comptime T: type, a: NDArray(T)) !NDArray(Complex(T))

ifft

Compute the one-dimensional inverse discrete Fourier Transform.

pub fn ifft(allocator: Allocator, comptime T: type, a: NDArray(Complex(T))) !NDArray(Complex(T))

2D FFT

fft2

Compute the 2-dimensional discrete Fourier Transform.

pub fn fft2(allocator: Allocator, comptime T: type, a: NDArray(T)) !NDArray(Complex(T))

ifft2

Compute the 2-dimensional inverse discrete Fourier Transform.

pub fn ifft2(allocator: Allocator, comptime T: type, a: NDArray(Complex(T))) !NDArray(Complex(T))

N-D FFT

fftn

Compute the N-dimensional discrete Fourier Transform.

pub fn fftn(allocator: Allocator, comptime T: type, a: NDArray(T)) !NDArray(Complex(T))

ifftn

Compute the N-dimensional inverse discrete Fourier Transform.

pub fn ifftn(allocator: Allocator, comptime T: type, a: NDArray(Complex(T))) !NDArray(Complex(T))