## Fourier transform

Purpose

Description

Macro Synopsis

Modules

Related Functions

### Purpose

Fourier transform

### Description

"Fourier transform" calculates the discrete complex Fourier Transform y
out of the given signal x according to

with N being the length of the input signal (in samples) using a Fast Fourier Transform (FFT) algorithm.

The type of FFT algorithm used can be set in the Basic Options menu.

### Macro Synopsis

`y = FFT(x);`

signal x,y;

Note that y is a complex signal.

### Modules

Spectral

### Related Functions

Inverse Fourier transform.