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use ndarray::*;
use super::traits::StiffDiag;
#[derive(Clone,Copy,Debug)]
pub struct Lorenz63 {
pub p: f64,
pub r: f64,
pub b: f64,
}
impl Default for Lorenz63 {
fn default() -> Self {
Lorenz63 {
p: 10.0,
r: 28.0,
b: 8.0 / 3.0,
}
}
}
impl Lorenz63 {
pub fn new(p: f64, r: f64, b: f64) -> Self {
Lorenz63 { p: p, r: r, b: b }
}
}
impl StiffDiag<f64, Ix1> for Lorenz63 {
fn nonlinear(&self, mut v: RcArray1<f64>) -> RcArray1<f64> {
let x = v[0];
let y = v[1];
let z = v[2];
v[0] = self.p * y;
v[1] = x * (self.r - z);
v[2] = x * y;
v
}
fn linear_diagonal(&self) -> RcArray1<f64> {
rcarr1(&[-self.p, -1.0, -self.b])
}
}