Struct Dimension 

pub struct Dimension { /* private fields */ }

A physical dimension: a vector of rational exponents over BaseDim. The group operation is mul (axiswise exponent addition); the identity is Dimension::DIMENSIONLESS; the inverse is Dimension::recip.

Implementations

impl Dimension

pub const DIMENSIONLESS: Dimension

The identity dimension — the all-zero exponent vector (a pure number, e.g. a count or ratio).

pub fn base(d: BaseDim) -> Dimension

The dimension of a single base axis raised to the first power (e.g. base(Length) = L).

pub fn from_exps(e: [Exp; 10]) -> Dimension

Build a dimension directly from its exponent vector (in BaseDim::ALL order) — the inverse of reading exponent for each axis. Used to reconstruct a dimension from the wire, where the exponents travel as their (numerator, denominator) pairs.

pub fn exponent(self, d: BaseDim) -> Exp

The exponent on a given base axis.

pub fn is_dimensionless(self) -> bool

True for the dimensionless identity (every exponent zero).

pub fn mul(self, other: Dimension) -> Dimension

self × other — axiswise exponent ADDITION (Length × Length = Length²).

pub fn div(self, other: Dimension) -> Dimension

self ÷ other — axiswise exponent SUBTRACTION (Area ÷ Length = Length).

pub fn recip(self) -> Dimension

1 / self — the multiplicative inverse (negate every exponent). Frequency = recip(Time).

pub fn powi(self, k: i32) -> Dimension

self^k — the kth power (scale every exponent). powi(0) is dimensionless.

pub fn nth_root(self, k: i32) -> Dimension

The kth root — divide every exponent by k (nth_root(Area, 2) = Length). Panics for k == 0.

pub fn length() -> Dimension

pub fn mass() -> Dimension

pub fn time() -> Dimension

pub fn current() -> Dimension

pub fn temperature() -> Dimension

pub fn amount() -> Dimension

pub fn luminous() -> Dimension

pub fn angle() -> Dimension

pub fn solid_angle() -> Dimension

pub fn information() -> Dimension

pub fn area() -> Dimension

pub fn volume() -> Dimension

pub fn speed() -> Dimension

pub fn acceleration() -> Dimension

pub fn frequency() -> Dimension

pub fn force() -> Dimension

pub fn energy() -> Dimension

pub fn power() -> Dimension

pub fn pressure() -> Dimension

pub fn charge() -> Dimension

pub fn voltage() -> Dimension

pub fn resistance() -> Dimension

pub fn conductance() -> Dimension

pub fn capacitance() -> Dimension

pub fn magnetic_flux() -> Dimension

pub fn inductance() -> Dimension

pub fn magnetic_flux_density() -> Dimension

pub fn surface_tension() -> Dimension

pub fn density() -> Dimension

pub fn absorbed_dose() -> Dimension

pub fn radioactivity() -> Dimension

pub fn exposure() -> Dimension

pub fn catalytic_activity() -> Dimension

pub fn luminous_flux() -> Dimension

pub fn illuminance() -> Dimension

pub fn luminance() -> Dimension

pub fn data_rate() -> Dimension

pub fn volumetric_flow() -> Dimension

pub fn molar_concentration() -> Dimension

pub fn molality() -> Dimension

pub fn dynamic_viscosity() -> Dimension

pub fn kinematic_viscosity() -> Dimension

pub fn fuel_economy() -> Dimension

pub fn by_name(name: &str) -> Option<Dimension>

Resolve a named dimension (case-insensitive) to its exponent vector — the lookup behind the Quantity of <Dimension> type annotation (Quantity of Length, Quantity of Area). The names are the human dimension words, not units; None for an unknown name.

Trait Implementations

impl Clone for Dimension

fn clone(&self) -> Dimension

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Dimension

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Display for Dimension

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Hash for Dimension

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for Dimension

fn eq(&self, other: &Dimension) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for Dimension

impl Eq for Dimension

impl StructuralPartialEq for Dimension