Struct polynomial_solver::Polynomial

pub struct Polynomial { /* private fields */ }

Implementations

impl Polynomial

pub fn new(terms: Vec<Monomial>) -> Polynomial

Creates a new polynomial from a vector of monomials

pub fn from(terms: Vec<(f64, u64)>) -> Polynomial

Creates a new polynomial from a vector of (f64, u64) tuples representing monomials

pub fn evaluate(&self, arg: f64) -> f64

Returns the value of the polynomial at a particular point

impl Polynomial

pub fn derivative(&self) -> Polynomial

returns the derivative of the polynomial

pub fn solve(&self, guess: f64, iterations: u64) -> f64

Uses the Newton-Raphson method to approximate the solution to the polynomial with a certain starting guess and a certain number of iterations.

pub fn solve_accurately(&self, guess: f64) -> Result<f64, &str>

Uses the Newton-Raphson method until the answer shows no significant change. Can lead to an error if the functino has no solution among the reals or the starting guess leads to a division by zero somewhere.

impl Polynomial

pub fn from_string(argstring: String) -> Result<Polynomial, String>

Creates a polynomial from a string representing the polynomial