Function roots::find_roots_quadratic

pub fn find_roots_quadratic<F: FloatType>(a2: F, a1: F, a0: F) -> Roots<F>

Solves a quadratic equation a2*x² + a1*x + a0 = 0.

In case two roots are present, the first returned root is less than the second one.

Examples

use roots::Roots;
use roots::find_roots_quadratic;

let no_roots = find_roots_quadratic(1f32, 0f32, 1f32);
// Returns Roots::No([]) as 'x^2 + 1 = 0' has no roots

let one_root = find_roots_quadratic(1f64, 0f64, 0f64);
// Returns Roots::One([0f64]) as 'x^2 = 0' has one root 0

let two_roots = find_roots_quadratic(1f32, 0f32, -1f32);
// Returns Roots::Two([-1f32,1f32]) as 'x^2 - 1 = 0' has roots -1 and 1