Function bezier1::n

pub fn n<T, F>(points: &[T], t: &F) -> T where
    T: Clone + Cast<F> + Zero,
    F: Clone + One + Zero + FromPrimitive + PartialOrd + Cast<T> + Sub<F, Output = F> + Mul<F, Output = F>,
    &'a F: Sub<&'b F, Output = F> + Mul<&'b F, Output = F>,