Function peroxide::numerical::spline::cubic_spline

pub fn cubic_spline(node_x: Vector, node_y: Vector) -> Vec<Polynomial>

Cubic Spline (Natural)

Description

Implement algorithm of Natural cubic splines, Arne Morten Kvarving.

Type

(Vector, Vector) -> Vec

Examples

extern crate peroxide;
use peroxide::*;

let x = c!(0.9, 1.3, 1.9, 2.1);
let y = c!(1.3, 1.5, 1.85, 2.1);

let s = cubic_spline(x, y);

for i in 0 .. s.len() {
    s[i].print();
}

// -0.2347x^3 + 0.6338x^2 - 0.0329x + 0.9873
// 0.9096x^3 - 3.8292x^2 + 5.7691x - 1.5268
// -2.2594x^3 + 14.2342x^2 - 28.5513x + 20.2094