Trait DisplayCoef 

pub trait DisplayCoef {
    // Required methods
    fn has_negative_sign(&self) -> bool;
    fn needs_parentheses(&self) -> bool;
}

A coefficent that can be displayed in a linear combination.

Required Methods

fn has_negative_sign(&self) -> bool

Does coefficent have a negative sign?

In contrast to the is_negative method of num_traits::Signed, this is about syntax rather than denotion. For example, the symbolic expression -k has a negative sign, but may or may not denote a negative number, depending on whether k itself takes a positive value.

fn needs_parentheses(&self) -> bool

Does the coefficient need to be parenthesized when displayed?

Implementations on Foreign Types

impl DisplayCoef for f32

fn has_negative_sign(&self) -> bool

fn needs_parentheses(&self) -> bool

impl DisplayCoef for f64

fn has_negative_sign(&self) -> bool

fn needs_parentheses(&self) -> bool

impl DisplayCoef for i32

fn has_negative_sign(&self) -> bool

fn needs_parentheses(&self) -> bool

impl DisplayCoef for i64

fn has_negative_sign(&self) -> bool

fn needs_parentheses(&self) -> bool

impl DisplayCoef for u32

fn has_negative_sign(&self) -> bool

fn needs_parentheses(&self) -> bool

impl DisplayCoef for u64

fn has_negative_sign(&self) -> bool

fn needs_parentheses(&self) -> bool

impl DisplayCoef for usize

fn has_negative_sign(&self) -> bool

fn needs_parentheses(&self) -> bool

Implementors

impl<Var, Coef, Exp> DisplayCoef for Polynomial<Var, Coef, Exp>

where Var: Ord, Coef: DisplayCoef, Exp: Ord,