[−][src]Struct rustnomial::Polynomial
Fields
terms: Vec<N>
Implementations
impl<N> Polynomial<N> where
N: Zero + Copy,
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N: Zero + Copy,
pub fn new(terms: Vec<N>) -> Polynomial<N>
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Returns a Polynomial
with the corresponding terms,
in order of ax^n + bx^(n-1) + ... + cx + d
Arguments
terms
- A vector of constants, in decreasing order of degree.
Example
use rustnomial::Polynomial; // Corresponds to 1.0x^2 + 4.0x + 4.0 let polynomial = Polynomial::new(vec![1.0, 4.0, 4.0]);
pub fn trim(&mut self)
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Reduces the size of the Polynomial
in memory if the leading terms are zero.
Example
use rustnomial::Polynomial; let mut polynomial = Polynomial::new(vec![1.0, 4.0, 4.0]); polynomial.terms = vec![0.0, 0.0, 0.0, 0.0, 1.0, 4.0, 4.0]; polynomial.trim(); assert_eq!(vec![1.0, 4.0, 4.0], polynomial.terms);
impl Polynomial<f64>
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pub fn roots(self) -> Roots<f64>
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Return the roots of the Polynomial
.
Example
use rustnomial::{Polynomial, Roots, SizedPolynomial}; let zero = Polynomial::<f64>::zero(); assert_eq!(Roots::InfiniteRoots, zero.roots()); let constant = Polynomial::new(vec![1.]); assert_eq!(Roots::NoRoots, constant.roots()); let monomial = Polynomial::new(vec![1.0, 0.,]); assert_eq!(Roots::ManyRealRoots(vec![0.]), monomial.roots()); let binomial = Polynomial::new(vec![1.0, 2.0]); assert_eq!(Roots::ManyRealRoots(vec![-2.0]), binomial.roots()); let trinomial = Polynomial::new(vec![1.0, 4.0, 4.0]); assert_eq!(Roots::ManyRealRoots(vec![-2.0, -2.0]), trinomial.roots()); let quadnomial = Polynomial::new(vec![1.0, 6.0, 12.0, 8.0]); assert_eq!(Roots::ManyRealRoots(vec![-2.0, -2.0, -2.0]), quadnomial.roots());
impl<N> Polynomial<N> where
N: Mul<Output = N> + AddAssign + Copy + Zero + One,
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N: Mul<Output = N> + AddAssign + Copy + Zero + One,
pub fn pow(&self, exp: usize) -> Polynomial<N>
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Raises the Polynomial
to the power of exp, using exponentiation by squaring.
Example
use rustnomial::Polynomial; let polynomial = Polynomial::new(vec![1.0, 2.0]); let polynomial_sqr = polynomial.pow(2); let polynomial_cub = polynomial.pow(3); assert_eq!(polynomial.clone() * polynomial.clone(), polynomial_sqr); assert_eq!(polynomial_sqr.clone() * polynomial.clone(), polynomial_cub);
impl<N> Polynomial<N> where
N: Copy + Zero + SubAssign + Mul<Output = N> + Div<Output = N>,
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N: Copy + Zero + SubAssign + Mul<Output = N> + Div<Output = N>,
pub fn div_mod(&self, _rhs: &Polynomial<N>) -> (Polynomial<N>, Polynomial<N>)
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Divides self by the given Polynomial
, and returns the quotient and remainder.
impl<N> Polynomial<N> where
N: Copy + Zero + SubAssign + Mul<Output = N> + Div<Output = N>,
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N: Copy + Zero + SubAssign + Mul<Output = N> + Div<Output = N>,
pub fn floor_div(&self, _rhs: &Polynomial<N>) -> Polynomial<N>
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Divides self by the given Polynomial
, and returns the quotient.
Trait Implementations
impl<N> Add<Polynomial<N>> for Polynomial<N> where
N: Zero + Copy + AddAssign,
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N: Zero + Copy + AddAssign,
type Output = Polynomial<N>
The resulting type after applying the +
operator.
pub fn add(self, _rhs: Polynomial<N>) -> Polynomial<N>
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impl<N: Copy + Zero + AddAssign> AddAssign<Polynomial<N>> for Polynomial<N>
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pub fn add_assign(&mut self, _rhs: Polynomial<N>)
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impl<N: Clone> Clone for Polynomial<N>
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pub fn clone(&self) -> Polynomial<N>
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pub fn clone_from(&mut self, source: &Self)
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impl<N: Debug> Debug for Polynomial<N>
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impl<N> Derivable<N> for Polynomial<N> where
N: Zero + One + TryFromUsizeContinuous + Copy + MulAssign + SubAssign,
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N: Zero + One + TryFromUsizeContinuous + Copy + MulAssign + SubAssign,
pub fn derivative(&self) -> Polynomial<N>
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impl<N> Display for Polynomial<N> where
N: Zero + One + IsPositive + PartialEq + Abs + Copy + IsNegativeOne + Display,
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N: Zero + One + IsPositive + PartialEq + Abs + Copy + IsNegativeOne + Display,
impl<N> Div<N> for Polynomial<N> where
N: Zero + Copy + Div<Output = N>,
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N: Zero + Copy + Div<Output = N>,
type Output = Polynomial<N>
The resulting type after applying the /
operator.
pub fn div(self, _rhs: N) -> Polynomial<N>
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impl<N: Copy + DivAssign> DivAssign<N> for Polynomial<N>
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pub fn div_assign(&mut self, _rhs: N)
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impl<N> Evaluable<N> for Polynomial<N> where
N: Zero + Copy + AddAssign + MulAssign + Mul<Output = N>,
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N: Zero + Copy + AddAssign + MulAssign + Mul<Output = N>,
impl<N> FreeSizePolynomial<N> for Polynomial<N> where
N: Zero + Copy + AddAssign,
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N: Zero + Copy + AddAssign,
pub fn from_terms(terms: &[(N, usize)]) -> Self
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Returns a Polynomial
with the corresponding terms,
in order of ax^n + bx^(n-1) + ... + cx + d
Arguments
terms
- A slice of (coefficient, degree) pairs.
Example
use rustnomial::{FreeSizePolynomial, Polynomial}; // Corresponds to 1.0x^2 + 4.0x + 4.0 let polynomial = Polynomial::from_terms(&[(1.0, 2), (4.0, 1), (4.0, 0)]); assert_eq!(Polynomial::new(vec![1., 4., 4.]), polynomial);
pub fn add_term(&mut self, coeff: N, degree: usize)
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impl From<Polynomial<f32>> for Polynomial<f64>
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pub fn from(item: Polynomial<f32>) -> Self
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impl From<Polynomial<i16>> for Polynomial<i32>
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pub fn from(item: Polynomial<i16>) -> Self
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impl From<Polynomial<i16>> for Polynomial<i64>
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pub fn from(item: Polynomial<i16>) -> Self
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impl From<Polynomial<i16>> for Polynomial<i128>
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pub fn from(item: Polynomial<i16>) -> Self
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impl From<Polynomial<i16>> for Polynomial<f32>
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pub fn from(item: Polynomial<i16>) -> Self
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impl From<Polynomial<i16>> for Polynomial<f64>
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pub fn from(item: Polynomial<i16>) -> Self
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impl From<Polynomial<i32>> for Polynomial<i64>
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pub fn from(item: Polynomial<i32>) -> Self
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impl From<Polynomial<i32>> for Polynomial<i128>
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pub fn from(item: Polynomial<i32>) -> Self
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impl From<Polynomial<i32>> for Polynomial<f64>
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pub fn from(item: Polynomial<i32>) -> Self
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impl From<Polynomial<i64>> for Polynomial<i128>
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pub fn from(item: Polynomial<i64>) -> Self
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impl From<Polynomial<i8>> for Polynomial<i16>
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pub fn from(item: Polynomial<i8>) -> Self
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impl From<Polynomial<i8>> for Polynomial<i32>
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pub fn from(item: Polynomial<i8>) -> Self
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impl From<Polynomial<i8>> for Polynomial<i64>
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pub fn from(item: Polynomial<i8>) -> Self
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impl From<Polynomial<i8>> for Polynomial<i128>
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pub fn from(item: Polynomial<i8>) -> Self
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impl From<Polynomial<i8>> for Polynomial<f32>
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pub fn from(item: Polynomial<i8>) -> Self
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impl From<Polynomial<i8>> for Polynomial<f64>
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pub fn from(item: Polynomial<i8>) -> Self
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impl From<Polynomial<u16>> for Polynomial<u32>
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pub fn from(item: Polynomial<u16>) -> Self
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impl From<Polynomial<u16>> for Polynomial<u64>
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pub fn from(item: Polynomial<u16>) -> Self
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impl From<Polynomial<u16>> for Polynomial<u128>
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pub fn from(item: Polynomial<u16>) -> Self
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impl From<Polynomial<u16>> for Polynomial<i32>
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pub fn from(item: Polynomial<u16>) -> Self
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impl From<Polynomial<u16>> for Polynomial<i64>
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pub fn from(item: Polynomial<u16>) -> Self
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impl From<Polynomial<u16>> for Polynomial<i128>
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pub fn from(item: Polynomial<u16>) -> Self
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impl From<Polynomial<u16>> for Polynomial<f32>
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pub fn from(item: Polynomial<u16>) -> Self
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impl From<Polynomial<u16>> for Polynomial<f64>
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pub fn from(item: Polynomial<u16>) -> Self
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impl From<Polynomial<u32>> for Polynomial<u64>
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pub fn from(item: Polynomial<u32>) -> Self
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impl From<Polynomial<u32>> for Polynomial<u128>
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pub fn from(item: Polynomial<u32>) -> Self
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impl From<Polynomial<u32>> for Polynomial<i64>
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pub fn from(item: Polynomial<u32>) -> Self
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impl From<Polynomial<u32>> for Polynomial<i128>
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pub fn from(item: Polynomial<u32>) -> Self
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impl From<Polynomial<u32>> for Polynomial<f64>
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pub fn from(item: Polynomial<u32>) -> Self
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impl From<Polynomial<u64>> for Polynomial<u128>
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pub fn from(item: Polynomial<u64>) -> Self
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impl From<Polynomial<u64>> for Polynomial<i128>
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pub fn from(item: Polynomial<u64>) -> Self
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impl From<Polynomial<u8>> for Polynomial<u16>
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pub fn from(item: Polynomial<u8>) -> Self
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impl From<Polynomial<u8>> for Polynomial<u32>
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pub fn from(item: Polynomial<u8>) -> Self
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impl From<Polynomial<u8>> for Polynomial<u64>
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pub fn from(item: Polynomial<u8>) -> Self
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impl From<Polynomial<u8>> for Polynomial<u128>
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pub fn from(item: Polynomial<u8>) -> Self
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impl From<Polynomial<u8>> for Polynomial<i16>
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pub fn from(item: Polynomial<u8>) -> Self
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impl From<Polynomial<u8>> for Polynomial<i32>
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pub fn from(item: Polynomial<u8>) -> Self
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impl From<Polynomial<u8>> for Polynomial<i64>
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pub fn from(item: Polynomial<u8>) -> Self
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impl From<Polynomial<u8>> for Polynomial<i128>
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pub fn from(item: Polynomial<u8>) -> Self
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impl From<Polynomial<u8>> for Polynomial<f32>
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pub fn from(item: Polynomial<u8>) -> Self
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impl From<Polynomial<u8>> for Polynomial<f64>
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pub fn from(item: Polynomial<u8>) -> Self
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impl<N> From<Vec<N, Global>> for Polynomial<N> where
N: Copy + Zero,
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N: Copy + Zero,
pub fn from(term_vec: Vec<N>) -> Self
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Returns a SparsePolynomial
with the corresponding terms,
in order of ax^n + bx^(n-1) + ... + cx + d
Arguments
term_vec
- A vector of constants, in decreasing order of degree.
Example
use rustnomial::{Polynomial}; // Corresponds to 1.0x^2 + 4.0x + 4.0 let polynomial = Polynomial::from(vec![1.0, 4.0, 4.0]); let polynomial: Polynomial<f64> = vec![1.0, 4.0, 4.0].into();
impl<N> FromStr for Polynomial<N> where
N: Zero + One + Copy + SubAssign + AddAssign + FromStr + CanNegate,
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N: Zero + One + Copy + SubAssign + AddAssign + FromStr + CanNegate,
type Err = PolynomialFromStringError
The associated error which can be returned from parsing.
pub fn from_str(s: &str) -> Result<Self, Self::Err>
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impl<N> Integrable<N, Polynomial<N>> for LinearBinomial<N> where
N: Zero + Copy + DivAssign + Mul<Output = N> + MulAssign + AddAssign + Div<Output = N> + TryFromUsizeContinuous,
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N: Zero + Copy + DivAssign + Mul<Output = N> + MulAssign + AddAssign + Div<Output = N> + TryFromUsizeContinuous,
pub fn integral(&self) -> Integral<N, Polynomial<N>>
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Returns the integral of the LinearBinomial
.
Example
use rustnomial::{LinearBinomial, Integrable, Polynomial}; let binomial = LinearBinomial::new([2.0, 0.]); let integral = binomial.integral(); assert_eq!(&Polynomial::new(vec![1.0, 0.0, 0.0]), integral.inner());
Will panic if N
can not losslessly represent 2usize
.
impl<N> Integrable<N, Polynomial<N>> for Polynomial<N> where
N: Zero + One + Copy + DivAssign + Mul<Output = N> + MulAssign + AddAssign + TryFromUsizeContinuous + SubAssign,
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N: Zero + One + Copy + DivAssign + Mul<Output = N> + MulAssign + AddAssign + TryFromUsizeContinuous + SubAssign,
pub fn integral(&self) -> Integral<N, Polynomial<N>>
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Returns the integral of the Polynomial
.
Example
use rustnomial::{Polynomial, Integrable}; let polynomial = Polynomial::new(vec![1.0, 2.0, 5.0]); let integral = polynomial.integral(); assert_eq!(&Polynomial::new(vec![1.0/3.0, 1.0, 5.0, 0.0]), integral.inner());
Errors
Will panic if N
can not losslessly encode the numbers from 0 to the degree of self self
.
impl<N> Integrable<N, Polynomial<N>> for QuadraticTrinomial<N> where
N: Zero + TryFromUsizeExact + Copy + DivAssign + Mul<Output = N> + MulAssign + AddAssign + Div<Output = N>,
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N: Zero + TryFromUsizeExact + Copy + DivAssign + Mul<Output = N> + MulAssign + AddAssign + Div<Output = N>,
pub fn integral(&self) -> Integral<N, Polynomial<N>>
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Returns the integral of the Monomial
.
Example
use rustnomial::{QuadraticTrinomial, Integrable, Polynomial}; let trinomial = QuadraticTrinomial::new([3.0, 0., 0.]); let integral = trinomial.integral(); assert_eq!(&Polynomial::new(vec![1.0, 0.0, 0.0, 0.0]), integral.inner());
Errors
Will panic if N
can not losslessly represent 2usize
or 3usize
.
impl<N> Mul<&'_ Polynomial<N>> for Polynomial<N> where
N: Mul<Output = N> + AddAssign + Copy + Zero,
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N: Mul<Output = N> + AddAssign + Copy + Zero,
type Output = Polynomial<N>
The resulting type after applying the *
operator.
pub fn mul(self, _rhs: &Polynomial<N>) -> Polynomial<N>
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impl<N> Mul<&'_ Polynomial<N>> for &Polynomial<N> where
N: Mul<Output = N> + AddAssign + Copy + Zero,
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N: Mul<Output = N> + AddAssign + Copy + Zero,
type Output = Polynomial<N>
The resulting type after applying the *
operator.
pub fn mul(self, _rhs: &Polynomial<N>) -> Polynomial<N>
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impl<N: Zero + Copy + Mul<Output = N>> Mul<N> for Polynomial<N>
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type Output = Polynomial<N>
The resulting type after applying the *
operator.
pub fn mul(self, _rhs: N) -> Polynomial<N>
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impl<N> Mul<Polynomial<N>> for Polynomial<N> where
N: Mul<Output = N> + AddAssign + Copy + Zero,
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N: Mul<Output = N> + AddAssign + Copy + Zero,
type Output = Polynomial<N>
The resulting type after applying the *
operator.
pub fn mul(self, _rhs: Polynomial<N>) -> Polynomial<N>
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impl<N> Mul<Polynomial<N>> for &Polynomial<N> where
N: Mul<Output = N> + AddAssign + Copy + Zero,
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N: Mul<Output = N> + AddAssign + Copy + Zero,
type Output = Polynomial<N>
The resulting type after applying the *
operator.
pub fn mul(self, _rhs: Polynomial<N>) -> Polynomial<N>
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impl<N> MulAssign<&'_ Polynomial<N>> for Polynomial<N> where
N: Mul<Output = N> + AddAssign + Copy + Zero,
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N: Mul<Output = N> + AddAssign + Copy + Zero,
pub fn mul_assign(&mut self, _rhs: &Polynomial<N>)
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impl<N: Copy + MulAssign> MulAssign<N> for Polynomial<N>
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pub fn mul_assign(&mut self, _rhs: N)
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impl<N> MulAssign<Polynomial<N>> for Polynomial<N> where
N: Mul<Output = N> + AddAssign + Copy + Zero,
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N: Mul<Output = N> + AddAssign + Copy + Zero,
pub fn mul_assign(&mut self, _rhs: Polynomial<N>)
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impl<N> MutablePolynomial<N> for Polynomial<N> where
N: Zero + Copy + AddAssign + SubAssign + CanNegate,
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N: Zero + Copy + AddAssign + SubAssign + CanNegate,
pub fn try_add_term(
&mut self,
coeff: N,
degree: usize
) -> Result<(), TryAddError>
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&mut self,
coeff: N,
degree: usize
) -> Result<(), TryAddError>
pub fn try_sub_term(
&mut self,
coeff: N,
degree: usize
) -> Result<(), TryAddError>
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&mut self,
coeff: N,
degree: usize
) -> Result<(), TryAddError>
impl<N> Neg for Polynomial<N> where
N: Zero + Copy + Neg<Output = N>,
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N: Zero + Copy + Neg<Output = N>,
type Output = Polynomial<N>
The resulting type after applying the -
operator.
pub fn neg(self) -> Polynomial<N>
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impl<N> PartialEq<Polynomial<N>> for Polynomial<N> where
N: PartialEq + Zero + Copy,
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N: PartialEq + Zero + Copy,
pub fn eq(&self, other: &Self) -> bool
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Returns true if self and other have the same terms.
Example
use rustnomial::Polynomial; let a = Polynomial::new(vec![1.0, 2.0]); let b = Polynomial::new(vec![2.0, 2.0]); let c = Polynomial::new(vec![1.0, 0.0]); assert_ne!(a, b); assert_ne!(a, c); assert_eq!(a, b - c);
#[must_use]pub fn ne(&self, other: &Rhs) -> bool
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impl<N> Rem<Polynomial<N>> for Polynomial<N> where
N: Copy + Zero + SubAssign + Mul<Output = N> + Div<Output = N>,
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N: Copy + Zero + SubAssign + Mul<Output = N> + Div<Output = N>,
type Output = Polynomial<N>
The resulting type after applying the %
operator.
pub fn rem(self, _rhs: Polynomial<N>) -> Polynomial<N>
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Returns the remainder of dividing self
by _rhs
.
impl<N> RemAssign<Polynomial<N>> for Polynomial<N> where
N: Copy + Zero + SubAssign + Mul<Output = N> + Div<Output = N>,
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N: Copy + Zero + SubAssign + Mul<Output = N> + Div<Output = N>,
pub fn rem_assign(&mut self, _rhs: Polynomial<N>)
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Assign the remainder of dividing self
by _rhs
to self
.
impl<N: Zero + Copy> Shl<i32> for Polynomial<N>
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type Output = Polynomial<N>
The resulting type after applying the <<
operator.
pub fn shl(self, _rhs: i32) -> Polynomial<N>
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impl<N: Zero + Copy> ShlAssign<i32> for Polynomial<N>
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pub fn shl_assign(&mut self, _rhs: i32)
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impl<N: Zero + Copy> Shr<i32> for Polynomial<N>
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type Output = Polynomial<N>
The resulting type after applying the >>
operator.
pub fn shr(self, _rhs: i32) -> Polynomial<N>
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impl<N: Zero + Copy> ShrAssign<i32> for Polynomial<N>
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pub fn shr_assign(&mut self, _rhs: i32)
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impl<N: Copy + Zero> SizedPolynomial<N> for Polynomial<N>
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pub fn len(&self) -> usize
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Returns the length of the Polynomial
. Not equal to the number of terms.
pub fn term_with_degree(&self, degree: usize) -> Term<N>
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pub fn degree(&self) -> Degree
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Returns the degree of the Polynomial
it is called on, corresponding to the
largest non-zero term.
Example
use rustnomial::{SizedPolynomial, Polynomial, Degree}; let polynomial = Polynomial::new(vec![1.0, 4.0, 4.0]); assert_eq!(Degree::Num(2), polynomial.degree());
pub fn zero() -> Polynomial<N>
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Returns a Polynomial
with no terms.
Example
use rustnomial::{SizedPolynomial, Polynomial}; let zero = Polynomial::<i32>::zero(); assert!(zero.is_zero()); assert!(zero.term_iter().next().is_none()); assert!(zero.terms.is_empty());
pub fn set_to_zero(&mut self)
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Sets self to zero.
Example
use rustnomial::{Polynomial, SizedPolynomial}; let mut non_zero = Polynomial::from(vec![0, 1]); assert!(!non_zero.is_zero()); non_zero.set_to_zero(); assert!(non_zero.is_zero());
pub fn term_iter(&self) -> TermIterator<'_, N> where
Self: Sized,
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Self: Sized,
pub fn is_zero(&self) -> bool
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impl<N> Sub<Polynomial<N>> for Polynomial<N> where
N: Zero + Copy + Sub<Output = N> + SubAssign + Neg<Output = N>,
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N: Zero + Copy + Sub<Output = N> + SubAssign + Neg<Output = N>,
type Output = Polynomial<N>
The resulting type after applying the -
operator.
pub fn sub(self, _rhs: Polynomial<N>) -> Polynomial<N>
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impl<N> Sub<Polynomial<N>> for SparsePolynomial<N> where
N: Zero + Copy + Sub<Output = N> + SubAssign + Neg<Output = N>,
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N: Zero + Copy + Sub<Output = N> + SubAssign + Neg<Output = N>,
type Output = SparsePolynomial<N>
The resulting type after applying the -
operator.
pub fn sub(self, _rhs: Polynomial<N>) -> SparsePolynomial<N>
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impl<N> SubAssign<Polynomial<N>> for Polynomial<N> where
N: Neg<Output = N> + Sub<Output = N> + SubAssign + Copy + Zero,
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N: Neg<Output = N> + Sub<Output = N> + SubAssign + Copy + Zero,
pub fn sub_assign(&mut self, _rhs: Polynomial<N>)
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Auto Trait Implementations
impl<N> RefUnwindSafe for Polynomial<N> where
N: RefUnwindSafe,
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N: RefUnwindSafe,
impl<N> Send for Polynomial<N> where
N: Send,
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N: Send,
impl<N> Sync for Polynomial<N> where
N: Sync,
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N: Sync,
impl<N> Unpin for Polynomial<N> where
N: Unpin,
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N: Unpin,
impl<N> UnwindSafe for Polynomial<N> where
N: UnwindSafe,
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N: UnwindSafe,
Blanket Implementations
impl<T> Any for T where
T: 'static + ?Sized,
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T: 'static + ?Sized,
impl<T> Borrow<T> for T where
T: ?Sized,
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T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
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T: ?Sized,
pub fn borrow_mut(&mut self) -> &mut T
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impl<T> From<T> for T
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impl<T, U> Into<U> for T where
U: From<T>,
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U: From<T>,
impl<T, Rhs> NumAssignOps<Rhs> for T where
T: AddAssign<Rhs> + SubAssign<Rhs> + MulAssign<Rhs> + DivAssign<Rhs> + RemAssign<Rhs>,
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T: AddAssign<Rhs> + SubAssign<Rhs> + MulAssign<Rhs> + DivAssign<Rhs> + RemAssign<Rhs>,
impl<T> ToOwned for T where
T: Clone,
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T: Clone,
type Owned = T
The resulting type after obtaining ownership.
pub fn to_owned(&self) -> T
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pub fn clone_into(&self, target: &mut T)
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impl<T> ToString for T where
T: Display + ?Sized,
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T: Display + ?Sized,
impl<T, U> TryFrom<U> for T where
U: Into<T>,
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U: Into<T>,
type Error = Infallible
The type returned in the event of a conversion error.
pub fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>
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impl<T, U> TryInto<U> for T where
U: TryFrom<T>,
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U: TryFrom<T>,