diff --git a/src/structs/rot.rs b/src/structs/rot.rs
index ace1501f..4bdcb84d 100644
--- a/src/structs/rot.rs
+++ b/src/structs/rot.rs
@@ -35,7 +35,7 @@ impl<N: Float + Num + Clone>
 Rotation<Vec1<N>> for Rot2<N> {
     #[inline]
     fn rotation(&self) -> Vec1<N> {
-        Vec1::new((-self.submat.m12).atan2(&self.submat.m11))
+        Vec1::new((-self.submat.m12).atan2(self.submat.m11.clone()))
     }
 
     #[inline]
diff --git a/src/structs/vec.rs b/src/structs/vec.rs
index dfe960fc..bcb1da6b 100644
--- a/src/structs/vec.rs
+++ b/src/structs/vec.rs
@@ -103,7 +103,6 @@ scalar_sub_impl!(Vec1, int, Vec1SubRhs, x)
 translation_impl!(Vec1)
 norm_impl!(Vec1, x)
 approx_eq_impl!(Vec1, x)
-round_impl!(Vec1, x)
 one_impl!(Vec1, x)
 from_iterator_impl!(Vec1, iterator)
 bounded_impl!(Vec1, x)
@@ -201,7 +200,6 @@ scalar_sub_impl!(Vec2, int, Vec2SubRhs, x, y)
 translation_impl!(Vec2)
 norm_impl!(Vec2, x, y)
 approx_eq_impl!(Vec2, x, y)
-round_impl!(Vec2, x, y)
 one_impl!(Vec2, x, y)
 from_iterator_impl!(Vec2, iterator, iterator)
 bounded_impl!(Vec2, x, y)
@@ -304,7 +302,6 @@ scalar_sub_impl!(Vec3, int, Vec3SubRhs, x, y, z)
 translation_impl!(Vec3)
 norm_impl!(Vec3, x, y ,z)
 approx_eq_impl!(Vec3, x, y, z)
-round_impl!(Vec3, x, y, z)
 one_impl!(Vec3, x, y, z)
 from_iterator_impl!(Vec3, iterator, iterator, iterator)
 bounded_impl!(Vec3, x, y, z)
@@ -407,7 +404,6 @@ scalar_sub_impl!(Vec4, int, Vec4SubRhs, x, y, z, w)
 translation_impl!(Vec4)
 norm_impl!(Vec4, x, y, z, w)
 approx_eq_impl!(Vec4, x, y, z, w)
-round_impl!(Vec4, x, y, z, w)
 one_impl!(Vec4, x, y, z, w)
 from_iterator_impl!(Vec4, iterator, iterator, iterator, iterator)
 bounded_impl!(Vec4, x, y, z, w)
@@ -511,7 +507,6 @@ scalar_sub_impl!(Vec5, int, Vec5SubRhs, x, y, z, w, a)
 translation_impl!(Vec5)
 norm_impl!(Vec5, x, y, z, w, a)
 approx_eq_impl!(Vec5, x, y, z, w, a)
-round_impl!(Vec5, x, y, z, w, a)
 one_impl!(Vec5, x, y, z, w, a)
 from_iterator_impl!(Vec5, iterator, iterator, iterator, iterator, iterator)
 bounded_impl!(Vec5, x, y, z, w, a)
@@ -617,7 +612,6 @@ scalar_sub_impl!(Vec6, int, Vec6SubRhs, x, y, z, w, a, b)
 translation_impl!(Vec6)
 norm_impl!(Vec6, x, y, z, w, a, b)
 approx_eq_impl!(Vec6, x, y, z, w, a, b)
-round_impl!(Vec6, x, y, z, w, a, b)
 one_impl!(Vec6, x, y, z, w, a, b)
 from_iterator_impl!(Vec6, iterator, iterator, iterator, iterator, iterator, iterator)
 bounded_impl!(Vec6, x, y, z, w, a, b)
diff --git a/src/structs/vec_macros.rs b/src/structs/vec_macros.rs
index fd492d63..0eeafb93 100644
--- a/src/structs/vec_macros.rs
+++ b/src/structs/vec_macros.rs
@@ -493,32 +493,6 @@ macro_rules! norm_impl(
     )
 )
 
-macro_rules! round_impl(
-    ($t: ident, $comp0: ident $(,$compN: ident)*) => (
-        impl<N: Round> Round for $t<N> {
-            fn floor(&self) -> $t<N> {
-                $t::new(self.$comp0.floor() $(, self.$compN.floor())*)
-            }
-
-            fn ceil(&self) -> $t<N> {
-                $t::new(self.$comp0.ceil() $(, self.$compN.ceil())*)
-            }
-
-            fn round(&self) -> $t<N> {
-                $t::new(self.$comp0.round() $(, self.$compN.round())*)
-            }
-
-            fn trunc(&self) -> $t<N> {
-                $t::new(self.$comp0.trunc() $(, self.$compN.trunc())*)
-            }
-
-            fn fract(&self) -> $t<N> {
-                $t::new(self.$comp0.fract() $(, self.$compN.fract())*)
-            }
-        }
-    )
-)
-
 macro_rules! approx_eq_impl(
     ($t: ident, $comp0: ident $(,$compN: ident)*) => (
         impl<N: ApproxEq<N>> ApproxEq<N> for $t<N> {
diff --git a/src/traits/structure.rs b/src/traits/structure.rs
index 0b3784b3..db0f1be9 100644
--- a/src/traits/structure.rs
+++ b/src/traits/structure.rs
@@ -39,7 +39,7 @@ pub trait VecExt<N>: AnyVec<N> + Indexable<uint, N> + Iterable<N> +
 
 /// Trait grouping uncommon, low-level and borderline (from the mathematical point of view)
 /// operations on vectors.
-pub trait FloatVecExt<N: Float>: FloatVec<N> + VecExt<N> + Basis + Round { }
+pub trait FloatVecExt<N: Float>: FloatVec<N> + VecExt<N> + Basis { }
 
 impl<N, V: Dim + Sub<V, V> + Add<V, V> + Neg<V> + Zero + Eq + Mul<N, V> + Div<N, V> + Dot<N>>
 AnyVec<N> for V { }
@@ -51,7 +51,7 @@ impl<N,
         UniformSphereSample + ScalarAdd<N> + ScalarSub<N> + Bounded>
 VecExt<N> for V { }
 
-impl<N: Float, V: FloatVec<N> + VecExt<N> + Basis + Round> FloatVecExt<N> for V { }
+impl<N: Float, V: FloatVec<N> + VecExt<N> + Basis> FloatVecExt<N> for V { }
 
 // FIXME: return an iterator instead
 /// Traits of objects which can form a basis (typically vectors).