fn eq(a: &[FieldElement<F>; 3], b: &[FieldElement<F>; 3]) -> bool {
        a[0] == b[0] && a[1] == b[1] && a[2] == b[2]
    }
Returns a boolean indicating whether `a` and `b` are equal component wise.
crates/math/src/field/extensions/cubic.rs