fn find_cubic_extrema(
a: f32,
b: f32,
c: f32,
d: f32,
t_values: &mut [NormalizedF32Exclusive; 3],
) -> &[NormalizedF32Exclusive]
fn find_cubic_extrema(
a: f32,
b: f32,
c: f32,
d: f32,
t_values: &mut [NormalizedF32Exclusive; 3],
) -> &[NormalizedF32Exclusive]