Function geomorph::math::polyval

pub fn polyval(order: usize, coefficents: &[f64], x: f64) -> f64

Inverse polynomial calculation with Horner's method

Arguments

• order: usize - Order of the polynom
• coefficents: &[f64] - Slice with the coefficents of the polynom. [1.0, 0.0, -3.5] means 1.0 * x.powi(2) + 0.0 * x - 3.5. Size must be order + 1, minimum.
• x: f64 - X to be evaluated

Example

let order: usize = 5;
let coefficents = vec![1.0, -3.5, 0.0, 14.0, 28.1, -155.0];
let x: f64 = 2.7;
let y: f64 = geomorph::math::polyval(order, &coefficents, x);