Struct Planner64 

pub struct Planner64 {
    pub twiddles_re: Vec<f64>,
    pub twiddles_im: Vec<f64>,
    pub direction: Direction,
}

The planner is responsible for pre-computing and storing twiddle factors for all the log_2(N) stages of the FFT. The amount of twiddle factors should always be a power of 2. In addition, the amount of twiddle factors should always be (1/2) * N

Fields

twiddles_re: Vec<f64>

The real components of the twiddle factors

twiddles_im: Vec<f64>

The imaginary components of the twiddle factors

direction: Direction

The direction of the FFT associated with this Planner

Implementations

impl Planner64

pub fn new(num_points: usize, direction: Direction) -> Self

Create a Planner for an FFT of size num_points. The twiddle factors are pre-computed based on the provided Direction. For Forward, use Direction::Forward. For Reverse, use Direction::Reverse.

Panics

Panics if num_points < 1 or if num_points is not a power of 2.