Trait FloatConst

pub trait FloatConst {
    // Required methods
    fn E() -> Self;
    fn FRAC_1_PI() -> Self;
    fn FRAC_1_SQRT_2() -> Self;
    fn FRAC_2_PI() -> Self;
    fn FRAC_2_SQRT_PI() -> Self;
    fn FRAC_PI_2() -> Self;
    fn FRAC_PI_3() -> Self;
    fn FRAC_PI_4() -> Self;
    fn FRAC_PI_6() -> Self;
    fn FRAC_PI_8() -> Self;
    fn LN_10() -> Self;
    fn LN_2() -> Self;
    fn LOG10_E() -> Self;
    fn LOG2_E() -> Self;
    fn PI() -> Self;
    fn SQRT_2() -> Self;

    // Provided methods
    fn TAU() -> Self
       where Self: Sized + Add<Self, Output = Self> { ... }
    fn LOG10_2() -> Self
       where Self: Sized + Div<Self, Output = Self> { ... }
    fn LOG2_10() -> Self
       where Self: Sized + Div<Self, Output = Self> { ... }
}

Required Methods

fn E() -> Self

Return Euler’s number.

fn FRAC_1_PI() -> Self

Return 1.0 / π.

fn FRAC_1_SQRT_2() -> Self

Return 1.0 / sqrt(2.0).

fn FRAC_2_PI() -> Self

Return 2.0 / π.

fn FRAC_2_SQRT_PI() -> Self

Return 2.0 / sqrt(π).

fn FRAC_PI_2() -> Self

Return π / 2.0.

fn FRAC_PI_3() -> Self

Return π / 3.0.

fn FRAC_PI_4() -> Self

Return π / 4.0.

fn FRAC_PI_6() -> Self

Return π / 6.0.

fn FRAC_PI_8() -> Self

Return π / 8.0.

fn LN_10() -> Self

Return ln(10.0).

fn LN_2() -> Self

Return ln(2.0).

fn LOG10_E() -> Self

Return log10(e).

fn LOG2_E() -> Self

Return log2(e).

fn PI() -> Self

Return Archimedes’ constant π.

fn SQRT_2() -> Self

Return sqrt(2.0).

Provided Methods

fn TAU() -> Self

where Self: Sized + Add<Self, Output = Self>,

Return the full circle constant τ.

fn LOG10_2() -> Self

where Self: Sized + Div<Self, Output = Self>,

Return log10(2.0).

fn LOG2_10() -> Self

where Self: Sized + Div<Self, Output = Self>,

Return log2(10.0).

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementations on Foreign Types

impl FloatConst for f32

fn E() -> Self

fn FRAC_1_PI() -> Self

fn FRAC_1_SQRT_2() -> Self

fn FRAC_2_PI() -> Self

fn FRAC_2_SQRT_PI() -> Self

fn FRAC_PI_2() -> Self

fn FRAC_PI_3() -> Self

fn FRAC_PI_4() -> Self

fn FRAC_PI_6() -> Self

fn FRAC_PI_8() -> Self

fn LN_10() -> Self

fn LN_2() -> Self

fn LOG10_E() -> Self

fn LOG2_E() -> Self

fn PI() -> Self

fn SQRT_2() -> Self

fn TAU() -> Self

fn LOG10_2() -> Self

fn LOG2_10() -> Self

impl FloatConst for f64

fn E() -> Self

fn FRAC_1_PI() -> Self

fn FRAC_1_SQRT_2() -> Self

fn FRAC_2_PI() -> Self

fn FRAC_2_SQRT_PI() -> Self

fn FRAC_PI_2() -> Self

fn FRAC_PI_3() -> Self

fn FRAC_PI_4() -> Self

fn FRAC_PI_6() -> Self

fn FRAC_PI_8() -> Self

fn LN_10() -> Self

fn LN_2() -> Self

fn LOG10_E() -> Self

fn LOG2_E() -> Self

fn PI() -> Self

fn SQRT_2() -> Self

fn TAU() -> Self

fn LOG10_2() -> Self

fn LOG2_10() -> Self

Implementors