Trait smartcore::math::num::RealNumber

pub trait RealNumber: Float + FromPrimitive + Debug + Display + Copy + Sum + Product + AddAssign + SubAssign + MulAssign + DivAssign {
    fn copysign(self, sign: Self) -> Self;
    fn ln_1pe(self) -> Self;
    fn sigmoid(self) -> Self;
    fn rand() -> Self;
    fn two() -> Self;
    fn half() -> Self;
    fn to_f32_bits(self) -> u32;

    fn square(self) -> Self { ... }
}

Defines real number

Required Methods

fn copysign(self, sign: Self) -> Self

Copy sign from sign - another real number

fn ln_1pe(self) -> Self

Calculates natural \( \ln(1+e^x) \) without overflow.

fn sigmoid(self) -> Self

Efficient implementation of Sigmoid function, \( S(x) = \frac{1}{1 + e^{-x}} \), see Sigmoid function

fn rand() -> Self

Returns pseudorandom number between 0 and 1

fn two() -> Self

Returns 2

fn half() -> Self

Returns .5

fn to_f32_bits(self) -> u32

Raw transmutation to u64

Provided Methods

fn square(self) -> Self

Returns \( x^2 \)

Implementations on Foreign Types

impl RealNumber for f64

fn copysign(self, sign: Self) -> Self

fn ln_1pe(self) -> f64

fn sigmoid(self) -> f64

fn rand() -> f64

fn two() -> Self

fn half() -> Self

fn to_f32_bits(self) -> u32

impl RealNumber for f32

fn copysign(self, sign: Self) -> Self

fn ln_1pe(self) -> f32

fn sigmoid(self) -> f32

fn rand() -> f32

fn two() -> Self

fn half() -> Self

fn to_f32_bits(self) -> u32

Implementors