Struct RootFormula 

pub struct RootFormula { /* private fields */ }

Base primitive to use in other formulas.

Implementations

impl RootFormula

pub fn new<T: Into<FormulaArgument>>(value: T) -> Self

Creates new RootFormula.

pub fn parse<T: for<'a> GetFunction<'a>>( expression: &str, formulas: &T, ) -> Result<Self, ParserError>

Parses &str into RootFormula.

Errors

will return Err if non valid expression is passed.

Trait Implementations

impl<T: Into<Self>> Add<T> for RootFormula

type Output = RootFormula

The resulting type after applying the + operator.

fn add(self, rhs: T) -> Self::Output

Performs the + operation.

impl Clone for RootFormula

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for RootFormula

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

Formats the value using the given formatter.

impl Default for RootFormula

fn default() -> RootFormula

Returns the “default value” for a type.

impl<T: Into<Self>> Div<T> for RootFormula

type Output = RootFormula

The resulting type after applying the / operator.

fn div(self, rhs: T) -> Self::Output

Performs the / operation.

impl Evaluate for RootFormula

fn eval(&self, args: &dyn GetVariable) -> Result<f64, EvaluationError>

Evaluates value of formula, args contains variables.

impl<T: Into<FormulaArgument>> From<T> for RootFormula

fn from(value: T) -> Self

Converts to this type from the input type.

impl FunctionLike for RootFormula

fn collapse_inner(&mut self) -> Result<(), MathError>

Simplifies function arguments. For example if one of the function arguments is “1 + 2”, this method will simplify it to “3”

fn set_all_variables_shared(&mut self, args: &dyn GetVariable)

Sets variables present in function to formulas stored in args as shared function. If function has some inner state and set as shared in different formulas, inner state will be shared.

fn set_all_variables_owned(&mut self, args: &dyn GetVariable)

Sets variables present in function to formulas stored in args as owned function. If function has some inner state and set as owned in different formulas, inner state will be different.

fn set_variable_shared(&mut self, name: &Variable, function: &Arc<RootFormula>)

Sets variable name in function to function as shared function. If function has some inner state and set as shared in different formulas, inner state will be shared.

fn set_variable_owned(&mut self, name: &Variable, function: &RootFormula)

Sets variable name in function to function as owned function. If function has some inner state and set as owned in different formulas, inner state will be different.

fn clone_into_box(&self) -> Box<dyn FunctionLike>

Creates clone of object stored in Box as trait object

impl IsConst for RootFormula

fn is_const(&self) -> bool

Returns true if formula returns same value for every .eval(…) call, else returns false.

impl<T: Into<Self>> Mul<T> for RootFormula

type Output = RootFormula

The resulting type after applying the * operator.

fn mul(self, rhs: T) -> Self::Output

Performs the * operation.

impl<T: Into<Self>> Sub<T> for RootFormula

type Output = RootFormula

The resulting type after applying the - operator.

fn sub(self, rhs: T) -> Self::Output

Performs the - operation.