Struct rootfind::convergence::FnResidual

pub struct FnResidual { /* fields omitted */ }

FnResidual converges when the residual is small: |f(x_cur)| < epsilon_abs.

Be aware that convergence can happen far from the actual root. For example, f(x)=-1e-7x+0.01 has the root at 100000, but with an epsilon_abs of 1e-3 we would converge anywhere in the range [90000, 110000].

Methods

impl FnResidual

fn new(epsilon_abs: f64) -> FnResidual

Trait Implementations

impl IsConverged for FnResidual

fn is_converged(&self, _x_pre: f64, _x_cur: f64, f_cur: f64) -> bool

Indicate whether root-finding has converged.