Function polymers::math::integrate_2d

source ยท 
pub fn integrate_2d(
    f: &dyn Fn(&f64, &f64) -> f64,
    x_min: &f64,
    x_max: &f64,
    y_min: &f64,
    y_max: &f64,
    num_points: u128,
) -> f64