Trait Number 

pub trait Number:
    Copy
    + Clone
    + Debug
    + Display
    + Default
    + Send
    + Sync
    + 'static {
    const ZERO: Self;
    const ONE: Self;
    const TWO: Self;
    const PI: Self;

    // Required methods
    fn from_i64(v: i64) -> Self;
    fn from_f64(v: f64) -> Self;
    fn from_scalar(s: Scalar) -> Self;
    fn from_ratio(num: i64, den: i64) -> GeopResult<Self>;
    fn to_f64(self) -> f64;
    fn add(self, other: Self) -> Self;
    fn sub(self, other: Self) -> Self;
    fn mul(self, other: Self) -> Self;
    fn neg(self) -> Self;
    fn div(self, other: Self) -> GeopResult<Self>;
    fn abs(self) -> Self;
    fn sqrt(self) -> GeopResult<Self>;
    fn sin(self) -> Self;
    fn cos(self) -> Self;
    fn acos(self) -> GeopResult<Self>;
    fn could_be_equal(self, other: Self) -> bool;
    fn definitely_not_equal(self, other: Self) -> bool;
    fn could_be_greater(self, other: Self) -> bool;
    fn definitely_greater(self, other: Self) -> bool;
    fn could_be_less(self, other: Self) -> bool;
    fn definitely_less(self, other: Self) -> bool;
    fn is_sharp(self) -> bool;
    fn is_exactly(self, other: Self) -> bool;
    fn union(self, other: Self) -> Self;

    // Provided method
    fn degrees_to_radians(self) -> GeopResult<Self> { ... }
}

A number a residual computes with: a Scalar, giving the residual’s value, or a crate::dual::Dual of one, giving its value and its derivatives by the variables it depends on. Every residual is written once, over T: Number, and evaluated with either. The comparisons act on the value alone.

Required Associated Constants

const ZERO: Self

const ONE: Self

const TWO: Self

const PI: Self

Required Methods

fn from_i64(v: i64) -> Self

fn from_f64(v: f64) -> Self

fn from_scalar(s: Scalar) -> Self

The scalar s as a constant: depending on no variable.

fn from_ratio(num: i64, den: i64) -> GeopResult<Self>

fn to_f64(self) -> f64

The value’s midpoint, for rendering and debugging.

fn add(self, other: Self) -> Self

fn sub(self, other: Self) -> Self

fn mul(self, other: Self) -> Self

fn neg(self) -> Self

fn div(self, other: Self) -> GeopResult<Self>

Fails where the divisor could be zero.

fn abs(self) -> Self

fn sqrt(self) -> GeopResult<Self>

fn sin(self) -> Self

fn cos(self) -> Self

fn acos(self) -> GeopResult<Self>

fn could_be_equal(self, other: Self) -> bool

fn definitely_not_equal(self, other: Self) -> bool

fn could_be_greater(self, other: Self) -> bool

fn definitely_greater(self, other: Self) -> bool

fn could_be_less(self, other: Self) -> bool

fn definitely_less(self, other: Self) -> bool

fn is_sharp(self) -> bool

Whether it is a single, exactly known point: a value that depends on no variable, and carries no width.

fn is_exactly(self, other: Self) -> bool

Whether its value is exactly other’s, as a set (see Scalar::is_exactly).

fn union(self, other: Self) -> Self

The smallest value containing both (see Scalar::union).

Provided Methods

fn degrees_to_radians(self) -> GeopResult<Self>

The angle self, given in degrees, in radians.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors

impl Number for Scalar

const ZERO: Self = Scalar::ZERO

const ONE: Self = Scalar::ONE

const TWO: Self = Scalar::TWO

const PI: Self = Scalar::PI

impl<const N: usize> Number for Dual<N>

const ZERO: Self

const ONE: Self

const TWO: Self

const PI: Self