pracma (version 1.2.5)

ifft: Inverse Fast Fourier Transformation

Description

Performs the inverse Fast Fourier Transform.

Usage

ifft(x)

Arguments

x

a real or complex vector

Value

• Real or complex vector of the same length.

Details

Returns the value of the normalized discrete, univariate, inverse Fast Fourier Transform of the values in x.

See Also

fft

Examples

x <- c(1, 2, 3, 4)
(y <- fft(x))
ifft(x)
ifft(y)