Trait truck_meshalgo::rexport_polymesh::EigenValues

pub trait EigenValues: VectorSpace {
    type EigenValues;

    fn eigenvalues(self) -> Self::EigenValues;
}

extension for eigen values

Required Associated Types

type EigenValues

the type of the array of eigen values

Required Methods

fn eigenvalues(self) -> Self::EigenValues

calculate eigen values.

Examples

use cgmath::*;
use matext4cgmath::*;
use num_complex::Complex;
const EPS: f64 = 1.0e-10;

let mat = Matrix2::new(4.0, -2.0, 3.0, -1.0);
let mut eigens = mat.eigenvalues();
// Even in the case of real solutions, the order in the array is not guaranteed.
eigens.sort_by(|x, y| x.re.partial_cmp(&y.re).unwrap());
assert!(Complex::norm(eigens[0] - 1.0) < EPS);
assert!(Complex::norm(eigens[1] - 2.0) < EPS);

Implementors

impl<F> EigenValues for Matrix2<F>where
    F: BaseFloat,

type EigenValues = [Complex<F>; 2]

impl<F> EigenValues for Matrix3<F>where
    F: BaseFloat,

type EigenValues = [Complex<F>; 3]

impl<F> EigenValues for Matrix4<F>where
    F: BaseFloat,

type EigenValues = [Complex<F>; 4]