Function peroxide::numerical::root::newton [−][src]
pub fn newton<F: Fn(AD) -> AD>(
f: F,
initial_guess: f64,
times: usize,
tol: f64
) -> Result<f64, RootError>
Expand description
Newton method to find root
Usage
extern crate peroxide; use peroxide::fuga::*; fn main() -> Result<(), RootError> { let x = newton(f, 2f64, 100, 1e-15)?; assert!((x - 3f64).abs() < 1e-15); Ok(()) } fn f(x: AD) -> AD { x.powi(2) - x * 2f64 - 3f64 }