error[E0277]: the trait bound `Linspace<{float}>: Clone` is not satisfied
    --> src/main.rs:5:60
     |
   5 |     for (x, y) in linspace(-1.0, 1.0, 3).cartesian_product(linspace(-1.0, 1.0, 3)) {
     |                                          ----------------- ^^^^^^^^^^^^^^^^^^^^^^ the trait `Clone` is not implemented for `Linspace<{float}>`
     |                                          |
     |                                          required by a bound introduced by this call