# Objective
- General clenup of the primitives in `bevy_math`
- Add `eccentricity()` to `Ellipse`
## Solution
- Moved `Bounded3d` implementation for `Triangle3d` to the `bounded`
module
- Added `eccentricity()` to `Ellipse`
- `Ellipse::semi_major()` and `::semi_minor()` now accept `&self`
instead of `self`
- `Triangle3d::is_degenerate()` actually uses `f32::EPSILON` as
documented
- Added tests for `Triangle3d`-maths
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Co-authored-by: Joona Aalto <jondolf.dev@gmail.com>
Co-authored-by: Miles Silberling-Cook <nth.tensor@gmail.com>