ifft

Inverse Fast Fourier transform.

📝 Syntax

• Y = ifft(X)

• Y = ifft(X, n)

• Y = ifft(X, n, dim)

📥 Input argument

• X - a vector, matrix or N-D array (double, single, integer, logical).

• n - transform length: a non negative integer scalar or [] (default).

• dim - dimension: a positive integer scalar.

📤 Output argument

• Y - a vector, matrix, N-D array: frequency domain representation.

📄 Description

ifft(X) computes the inverse discrete Fourier transform of X using a Fast Fourier Transform (FFT) algorithm based on FFTW library.

💡 Example

A = [1:10]
Y = fft(A)
R = ifft(Y)

🔗 See also

fft, fftw.

🕔 History

Version	📄 Description
1.0.0	initial version