Trait FFTErrorEstimate 

pub trait FFTErrorEstimate {
    // Required method
    fn expected_absolute_error(&self, input_bound: f64, input_error: f64) -> f64;
}

Available on crate feature unstable-enable only.

Trait for operations that perform float-point computations, and thus must care about precision. Currently only used for crate::algorithms::fft::FFTAlgorithm.

Availability

This API is marked as unstable and is only available when the unstable-enable crate feature is enabled. This comes with no stability guarantees, and could be changed or removed at any time.

Required Methods

fn expected_absolute_error(&self, input_bound: f64, input_error: f64) -> f64

This is only true if the table is created with the crate::rings::float_complex::Complex64-specific creator functions. Note that this is a worst-case estimate and likely to significantly overestimate the error.

This estimates the error from crate::algorithms::fft::FFTAlgorithm::unordered_fft(). The error during the inverse FFT is the same, but will be scaled by 1/n.

Implementors

impl<H, A> FFTErrorEstimate for BluesteinFFT<Complex64Base, Complex64Base, H, A>

where H: Homomorphism<Complex64Base, Complex64Base> + Clone, A: Allocator + Clone,

impl<H, A> FFTErrorEstimate for CooleyTuckeyFFT<Complex64Base, Complex64Base, H, A>

where H: Homomorphism<Complex64Base, Complex64Base>, A: Allocator,

impl<H, A> FFTErrorEstimate for CooleyTukeyRadix3FFT<Complex64Base, Complex64Base, H, A>

where H: Homomorphism<Complex64Base, Complex64Base>, A: Allocator,

impl<H, T1, T2> FFTErrorEstimate for GeneralCooleyTukeyFFT<Complex64Base, Complex64Base, H, T1, T2>

where H: Homomorphism<Complex64Base, Complex64Base>, T1: FFTAlgorithm<Complex64Base> + FFTErrorEstimate, T2: FFTAlgorithm<Complex64Base> + FFTErrorEstimate,