use crate::Scalar;
pub fn factor_iter(steps: usize) -> impl Iterator<Item = Scalar> {
(0..=steps).map(move |index| index as Scalar / steps as Scalar)
}
pub fn range_iter(steps: usize, from: Scalar, to: Scalar) -> impl Iterator<Item = Scalar> {
let diff = to - from;
(0..=steps).map(move |index| from + diff * index as Scalar / steps as Scalar)
}