Struct EquationVariable 

pub struct EquationVariable {
    pub symbol: String,
    pub name: String,
    pub units: String,
    pub description: String,
    pub constraints: Option<VariableConstraints>,
}

A variable in a governing equation with its metadata.

Fields

symbol: String

Symbol used in the equation (e.g., “λ”, “L”, “W”)

name: String

Human-readable name

units: String

Physical units (e.g., “items/time”, “seconds”)

description: String

Description of what this variable represents

constraints: Option<VariableConstraints>

Valid range constraints

Implementations

impl EquationVariable

pub fn new(symbol: &str, name: &str, units: &str) -> Self

Create a new equation variable.

pub fn with_description(self, desc: &str) -> Self

Add a description.

pub fn with_constraints(self, constraints: VariableConstraints) -> Self

Add constraints.

Trait Implementations

impl Clone for EquationVariable

fn clone(&self) -> EquationVariable

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for EquationVariable

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

Formats the value using the given formatter.