SizedPolynomial

rustnomial

Trait SizedPolynomial 

Source 
pub trait SizedPolynomial<N> {
    // Required methods
    fn term_with_degree(&self, degree: usize) -> Term<N>;
    fn terms_as_vec(&self) -> Vec<(N, usize)>;
    fn degree(&self) -> Degree;
    fn zero() -> Self
       where Self: Sized;
    fn set_to_zero(&mut self);

    // Provided method
    fn is_zero(&self) -> bool { ... }
}

Required Methods§

Source

fn term_with_degree(&self, degree: usize) -> Term<N>

Returns the term with the given degree from self. If the term degree is larger than the actual degree, ZeroTerm will be returned. However, terms which are zero will also be returned as ZeroTerm, so this does not indicate that the final term has been reached.

Source

fn terms_as_vec(&self) -> Vec<(N, usize)>

Returns a Vec containing all of the terms of self, where each item is the coefficient and degree of each non-zero term, in order of descending degree.

§Example
use rustnomial::{Polynomial, SizedPolynomial};
let polynomial = Polynomial::new(vec![1, 0, 2, 3]);
let terms = polynomial.terms_as_vec();
let mut iter = terms.into_iter();
assert_eq!(Some((1, 3)), iter.next());
assert_eq!(Some((2, 1)), iter.next());
assert_eq!(Some((3, 0)), iter.next());
assert_eq!(None, iter.next());
Source

fn degree(&self) -> Degree

Returns the degree of self.

Source

fn zero() -> Self
where Self: Sized,

Returns the zero-instance of Self.

Source

fn set_to_zero(&mut self)

Sets the terms of self to zero.

Provided Methods§

Source

fn is_zero(&self) -> bool

Returns true if all terms of self are zero, and false if a non-zero term exists.

§Example
use rustnomial::{SizedPolynomial, Polynomial};
let zero = Polynomial::new(vec![0, 0]);
assert!(zero.is_zero());
let non_zero = Polynomial::new(vec![0, 1]);
assert!(!non_zero.is_zero());

Implementors§