Struct QuadratureRule 

pub struct QuadratureRule {
    pub nodes: Vec<f64>,
    pub weights: Vec<f64>,
    pub name: String,
}

A generic quadrature rule defined by nodes and weights on a reference interval.

The nodes and weights are defined on [-1, 1]; apply rescales to [a, b].

Fields

nodes: Vec<f64>

Quadrature nodes on [-1, 1].

weights: Vec<f64>

Corresponding quadrature weights.

name: String

Human-readable name (e.g., “Gauss-Legendre-5”).

Implementations

impl QuadratureRule

pub fn new(nodes: Vec<f64>, weights: Vec<f64>, name: impl Into<String>) -> Self

Construct a new quadrature rule.

pub fn apply(&self, f: impl Fn(f64) -> f64, a: f64, b: f64) -> f64

Apply the quadrature rule to approximate ∫ f(x) dx on [a, b].

pub fn n_points(&self) -> usize

Number of quadrature points.

Trait Implementations

impl Clone for QuadratureRule

fn clone(&self) -> QuadratureRule

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for QuadratureRule

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

Formats the value using the given formatter.