newton

A dead-simple, dependency-free Rust crate for generic Newton method.

Usage

Everything is contained in the Newton iterator :

```rust use newton::Newton;

fn main() { let mut n = Newton::::new( 0.5, // Initial guess |x| x.cos() - x.powi(3), // The actual function |x| -(x.sin() + 3. * x.powi(2)), // Its derivative );

 assert!(n.nth(1000).unwrap() - 0.865474033102 < 1E-11)

} ```