Struct Sigmoid

pub struct Sigmoid {}

Computes the sigmoid function, aka. the standard logistic function, 1. / (1. + (-x).exp()).

This has a maximum error of 4 ULPs compared to a reference implementation using 1. / (1. + (-x).exp()).

Trait Implementations

impl Default for Sigmoid

fn default() -> Sigmoid

Returns the “default value” for a type.

impl SimdUnaryOp<f32> for Sigmoid

fn eval<I: Isa, S: Simd<Elem = f32, Isa = I>>(&self, isa: I, x: S) -> S

Evaluate the unary function on the elements in x.

fn apply<I, S>(isa: I, x: S) -> S

where I: Isa, S: Simd<Elem = T, Isa = I>, Self: Default,

Evaluate the unary function on elements in x.

fn map(&self, input: &[T], output: &mut [MaybeUninit<T>])

where Self: Sized, T: GetNumOps,

Apply this function to a slice.

fn map_mut(&self, input: &mut [T])

where Self: Sized, T: GetNumOps,

Apply a vectorized unary function to a mutable slice.

fn scalar_eval(&self, x: T) -> T

where Self: Sized, T: GetNumOps,

Apply this operation to a single element.