Struct peroxide::structure::polynomial::Polynomial

pub struct Polynomial {
    pub coef: Vec<f64>,
}

Polynomial Structure

Fields

coef: Vec<f64>

Implementations

impl Polynomial

pub fn new(coef: Vec<f64>) -> Self

Create Polynomial

pub fn eval<T>(&self, x: T) -> f64 where
    T: Into<f64> + Copy, 

Evaluate polynomial with value according to Horner’s method

Examples

#[macro_use]
extern crate peroxide;
use peroxide::fuga::*;

fn main() {
    let a = poly(c!(1,3,2));
    assert_eq!(a.eval(1), 6_f64);

    let b = poly(c!(1, 1, -2, -2));
    let x = 2_f64.sqrt();
    let horner_evaluation = b.eval(x);
    let naive_evaluation = x.powf(3.0) + x.powf(2.0) - 2.0*x - 2.0;
    assert_eq!(horner_evaluation, 0_f64);
    assert_ne!(naive_evaluation, horner_evaluation);
}

pub fn eval_vec(&self, v: Vec<f64>) -> Vec<f64>

pub fn translate_x<X>(&self, x: X) -> Self where
    X: Into<f64> + Copy, 

Linear transformation of a polynomial by a given x according to Horner’s method

Examples

#[macro_use]
extern crate peroxide;
use peroxide::fuga::*;

fn main() {
    let a = poly(c!(1,3,2));
    let translated = a.translate_x(2);

    assert_eq!(translated.eval(3), 6_f64);
}

Trait Implementations

impl Add<Polynomial> for Polynomial

type Output = Self

The resulting type after applying the + operator.

fn add(self, other: Self) -> Self

Performs the + operation.

impl<T> Add<T> for Polynomial where
    T: Into<f64> + Copy, 

type Output = Self

The resulting type after applying the + operator.

fn add(self, other: T) -> Self

Performs the + operation.

impl Calculus for Polynomial

fn diff(&self) -> Self

fn integral(&self) -> Self

impl Clone for Polynomial

fn clone(&self) -> Polynomial

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Polynomial

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

Formats the value using the given formatter.

impl Default for Polynomial

fn default() -> Polynomial

Returns the “default value” for a type.

impl Display for Polynomial

Polynomial Print

Examples

#[macro_use]
extern crate peroxide;
use peroxide::fuga::*;

fn main() {
    let a = poly(c!(1,3,2));
    a.print(); //x^2 + 3x + 2
}

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

Formats the value using the given formatter.

impl Div<Polynomial> for Polynomial

type Output = (Self, Self)

The resulting type after applying the / operator.

fn div(self, other: Self) -> Self::Output

Performs the / operation.

impl<T> Div<T> for Polynomial where
    T: Into<f64> + Copy, 

type Output = Self

The resulting type after applying the / operator.

fn div(self, other: T) -> Self

Performs the / operation.

impl Mul<Polynomial> for Polynomial

type Output = Self

The resulting type after applying the * operator.

fn mul(self, other: Self) -> Self

Performs the * operation.

impl<T> Mul<T> for Polynomial where
    T: Into<f64> + Copy, 

type Output = Self

The resulting type after applying the * operator.

fn mul(self, other: T) -> Self

Performs the * operation.

impl Neg for Polynomial

type Output = Self

The resulting type after applying the - operator.

fn neg(self) -> Self::Output

Performs the unary - operation.

impl PowOps for Polynomial

fn powi(&self, n: i32) -> Self

fn powf(&self, _f: f64) -> Self

fn pow(&self, _f: Self) -> Self

fn sqrt(&self) -> Self

impl Printable for Polynomial

fn print(&self)

impl Sub<Polynomial> for Polynomial

type Output = Self

The resulting type after applying the - operator.

fn sub(self, other: Self) -> Self

Performs the - operation.

impl<T> Sub<T> for Polynomial where
    T: Into<f64> + Copy, 

type Output = Self

The resulting type after applying the - operator.

fn sub(self, other: T) -> Self

Performs the - operation.

impl Environment for Polynomial