diff --git a/src/mat.rs b/src/mat.rs
index f1c53db8..c2bdfec4 100644
--- a/src/mat.rs
+++ b/src/mat.rs
@@ -6,6 +6,7 @@ use std::cmp::ApproxEq;
 use std::vec::{VecIterator, VecMutIterator};
 use vec::{Vec1, Vec2, Vec3, Vec4, Vec5, Vec6, Outer};
 
+// traits
 pub use traits::dim::Dim;
 pub use traits::indexable::Indexable;
 pub use traits::iterable::{Iterable, IterableMut};
@@ -21,6 +22,9 @@ pub use traits::transpose::{Transpose};
 pub use traits::homogeneous::{ToHomogeneous, FromHomogeneous};
 pub use traits::row::Row;
 
+// functions
+pub use traits::rotation::{rotated_wrt_point, rotate_wrt_point, rotated_wrt_center, rotate_wrt_center};
+
 mod mat_macros;
 
 /// Special identity matrix. All its operation are no-ops.