| 1 | //! Calculate length of the hypotenuse of a right triangle. |
|---|---|
| 2 | |
| 3 | use super::F32; |
| 4 | |
| 5 | impl F32 { |
| 6 | /// Calculate the length of the hypotenuse of a right-angle triangle. |
| 7 | pub fn hypot(self, rhs: Self) -> Self { |
| 8 | (self * self + rhs * rhs).sqrt() |
| 9 | } |
| 10 | } |
| 11 | |
| 12 | #[cfg(test)] |
| 13 | mod tests { |
| 14 | use super::F32; |
| 15 | |
| 16 | #[test] |
| 17 | fn sanity_check() { |
| 18 | let x = F32(3.0); |
| 19 | let y = F32(4.0); |
| 20 | let difference = x.hypot(y) - F32(25.0).sqrt(); |
| 21 | assert!(difference.abs() <= F32::EPSILON); |
| 22 | } |
| 23 | } |
| 24 |
