Trait Jacobian
mathru::optimization
pub trait Jacobian<T> where T: Real, { fn eval(&self, input: &Vector<T>) -> Vector<T>; fn jacobian(&self, input: &Vector<T>) -> Matrix<T>; }
fn eval(&self, input: &Vector<T>) -> Vector<T>
fn jacobian(&self, input: &Vector<T>) -> Matrix<T>