Exercise: Geometry

We will create a few utility functions for 3-dimensional geometry, representing a point as [f64;3]. It is up to you to determine the function signatures.

  1. // Calculate the magnitude of a vector by summing the squares of its coordinates
  2. // and taking the square root. Use the `sqrt()` method to calculate the square
  3. // root, like `v.sqrt()`.
  5. fn magnitude(...) -> f64 {
  6.     todo!()
  7. }
  9. // Normalize a vector by calculating its magnitude and dividing all of its
  10. // coordinates by that magnitude.
  12. fn normalize(...) {
  13.     todo!()
  14. }
  16. // Use the following `main` to test your work.
  18. fn main() {
  19.     println!("Magnitude of a unit vector: {}", magnitude(&[0.0, 1.0, 0.0]));
  21.     let mut v = [1.0, 2.0, 9.0];
  22.     println!("Magnitude of {v:?}: {}", magnitude(&v));
  23.     normalize(&mut v);
  24.     println!("Magnitude of {v:?} after normalization: {}", magnitude(&v));
  25. }