Struct SimpsonRule 

pub struct SimpsonRule {
    pub tol: f64,
    pub max_depth: usize,
}

Adaptive Simpson’s rule (1/3 rule).

Fields

tol: f64

Absolute tolerance.

max_depth: usize

Maximum recursion depth.

Implementations

impl SimpsonRule

pub fn new(tol: f64, max_depth: usize) -> Self

Create with given tolerance.

pub fn integrate<F: Fn(f64) -> f64>(&self, a: f64, b: f64, f: &F) -> f64

Integrate f over [a, b] using adaptive Simpson.

pub fn integrate38<F: Fn(f64) -> f64>(&self, a: f64, b: f64, f: &F) -> f64

Simpson 3/8 rule on [a, b] with four points.