diff --git a/src/geometry/isometry_conversion.rs b/src/geometry/isometry_conversion.rs
index bdb128f9..e3416cac 100644
--- a/src/geometry/isometry_conversion.rs
+++ b/src/geometry/isometry_conversion.rs
@@ -187,7 +187,7 @@ where
     #[inline]
     fn from(arr: [Isometry<N::Element, D, R::Element>; 2]) -> Self {
         let tra = Translation::from([arr[0].translation.clone(), arr[1].translation.clone()]);
-        let rot = R::from([arr[0].rotation.clone(), arr[0].rotation.clone()]);
+        let rot = R::from([arr[0].rotation, arr[0].rotation]);
 
         Self::from_parts(tra, rot)
     }
@@ -212,10 +212,10 @@ where
             arr[3].translation.clone(),
         ]);
         let rot = R::from([
-            arr[0].rotation.clone(),
-            arr[1].rotation.clone(),
-            arr[2].rotation.clone(),
-            arr[3].rotation.clone(),
+            arr[0].rotation,
+            arr[1].rotation,
+            arr[2].rotation,
+            arr[3].rotation,
         ]);
 
         Self::from_parts(tra, rot)
@@ -245,14 +245,14 @@ where
             arr[7].translation.clone(),
         ]);
         let rot = R::from([
-            arr[0].rotation.clone(),
-            arr[1].rotation.clone(),
-            arr[2].rotation.clone(),
-            arr[3].rotation.clone(),
-            arr[4].rotation.clone(),
-            arr[5].rotation.clone(),
-            arr[6].rotation.clone(),
-            arr[7].rotation.clone(),
+            arr[0].rotation,
+            arr[1].rotation,
+            arr[2].rotation,
+            arr[3].rotation,
+            arr[4].rotation,
+            arr[5].rotation,
+            arr[6].rotation,
+            arr[7].rotation,
         ]);
 
         Self::from_parts(tra, rot)
@@ -290,22 +290,22 @@ where
             arr[15].translation.clone(),
         ]);
         let rot = R::from([
-            arr[0].rotation.clone(),
-            arr[1].rotation.clone(),
-            arr[2].rotation.clone(),
-            arr[3].rotation.clone(),
-            arr[4].rotation.clone(),
-            arr[5].rotation.clone(),
-            arr[6].rotation.clone(),
-            arr[7].rotation.clone(),
-            arr[8].rotation.clone(),
-            arr[9].rotation.clone(),
-            arr[10].rotation.clone(),
-            arr[11].rotation.clone(),
-            arr[12].rotation.clone(),
-            arr[13].rotation.clone(),
-            arr[14].rotation.clone(),
-            arr[15].rotation.clone(),
+            arr[0].rotation,
+            arr[1].rotation,
+            arr[2].rotation,
+            arr[3].rotation,
+            arr[4].rotation,
+            arr[5].rotation,
+            arr[6].rotation,
+            arr[7].rotation,
+            arr[8].rotation,
+            arr[9].rotation,
+            arr[10].rotation,
+            arr[11].rotation,
+            arr[12].rotation,
+            arr[13].rotation,
+            arr[14].rotation,
+            arr[15].rotation,
         ]);
 
         Self::from_parts(tra, rot)
diff --git a/src/geometry/isometry_ops.rs b/src/geometry/isometry_ops.rs
index 20e96f3e..ecca9bb2 100644
--- a/src/geometry/isometry_ops.rs
+++ b/src/geometry/isometry_ops.rs
@@ -219,7 +219,7 @@ md_assign_impl_all!(
     (U3, U3), (U3, U3) for;
     self: Isometry<N, U3, UnitQuaternion<N>>, rhs: UnitQuaternion<N>;
     [val] => self.rotation *= rhs;
-    [ref] => self.rotation *= rhs.clone();
+    [ref] => self.rotation *= *rhs;
 );
 
 md_assign_impl_all!(
@@ -236,7 +236,7 @@ md_assign_impl_all!(
     (U2, U2), (U2, U2) for;
     self: Isometry<N, U2, UnitComplex<N>>, rhs: UnitComplex<N>;
     [val] => self.rotation *= rhs;
-    [ref] => self.rotation *= rhs.clone();
+    [ref] => self.rotation *= *rhs;
 );
 
 md_assign_impl_all!(
@@ -378,9 +378,9 @@ isometry_from_composition_impl_all!(
     self: UnitQuaternion<N>, right: Translation<N, U3>,
     Output = Isometry<N, U3, UnitQuaternion<N>>;
     [val val] => Isometry::from_parts(Translation::from(&self *  right.vector), self);
-    [ref val] => Isometry::from_parts(Translation::from( self *  right.vector), self.clone());
+    [ref val] => Isometry::from_parts(Translation::from( self *  right.vector), *self);
     [val ref] => Isometry::from_parts(Translation::from(&self * &right.vector), self);
-    [ref ref] => Isometry::from_parts(Translation::from( self * &right.vector), self.clone());
+    [ref ref] => Isometry::from_parts(Translation::from( self * &right.vector), *self);
 );
 
 // Isometry × Rotation
@@ -442,9 +442,9 @@ isometry_from_composition_impl_all!(
     self: Isometry<N, U3, UnitQuaternion<N>>, rhs: UnitQuaternion<N>,
     Output = Isometry<N, U3, UnitQuaternion<N>>;
     [val val] => Isometry::from_parts(self.translation, self.rotation * rhs);
-    [ref val] => Isometry::from_parts(self.translation.clone(), self.rotation.clone() * rhs); // TODO: do not clone.
-    [val ref] => Isometry::from_parts(self.translation, self.rotation * rhs.clone());
-    [ref ref] => Isometry::from_parts(self.translation.clone(), self.rotation.clone() * rhs.clone());
+    [ref val] => Isometry::from_parts(self.translation.clone(), self.rotation * rhs); // TODO: do not clone.
+    [val ref] => Isometry::from_parts(self.translation, self.rotation * *rhs);
+    [ref ref] => Isometry::from_parts(self.translation.clone(), self.rotation * *rhs);
 );
 
 // UnitQuaternion × Isometry
@@ -469,9 +469,9 @@ isometry_from_composition_impl_all!(
     self: Isometry<N, U3, UnitQuaternion<N>>, rhs: UnitQuaternion<N>,
     Output = Isometry<N, U3, UnitQuaternion<N>>;
     [val val] => Isometry::from_parts(self.translation, self.rotation / rhs);
-    [ref val] => Isometry::from_parts(self.translation.clone(), self.rotation.clone() / rhs); // TODO: do not clone.
-    [val ref] => Isometry::from_parts(self.translation, self.rotation / rhs.clone());
-    [ref ref] => Isometry::from_parts(self.translation.clone(), self.rotation.clone() / rhs.clone());
+    [ref val] => Isometry::from_parts(self.translation.clone(), self.rotation / rhs); // TODO: do not clone.
+    [val ref] => Isometry::from_parts(self.translation, self.rotation / *rhs);
+    [ref ref] => Isometry::from_parts(self.translation.clone(), self.rotation / *rhs);
 );
 
 // UnitQuaternion ÷ Isometry
@@ -505,8 +505,8 @@ isometry_from_composition_impl_all!(
     self: Translation<N, U3>, right: UnitQuaternion<N>, Output = Isometry<N, U3, UnitQuaternion<N>>;
     [val val] => Isometry::from_parts(self, right);
     [ref val] => Isometry::from_parts(self.clone(), right);
-    [val ref] => Isometry::from_parts(self, right.clone());
-    [ref ref] => Isometry::from_parts(self.clone(), right.clone());
+    [val ref] => Isometry::from_parts(self, *right);
+    [ref ref] => Isometry::from_parts(self.clone(), *right);
 );
 
 // Isometry × UnitComplex
@@ -516,9 +516,9 @@ isometry_from_composition_impl_all!(
     self: Isometry<N, U2, UnitComplex<N>>, rhs: UnitComplex<N>,
     Output = Isometry<N, U2, UnitComplex<N>>;
     [val val] => Isometry::from_parts(self.translation, self.rotation * rhs);
-    [ref val] => Isometry::from_parts(self.translation.clone(), self.rotation.clone() * rhs); // TODO: do not clone.
-    [val ref] => Isometry::from_parts(self.translation, self.rotation * rhs.clone());
-    [ref ref] => Isometry::from_parts(self.translation.clone(), self.rotation.clone() * rhs.clone());
+    [ref val] => Isometry::from_parts(self.translation.clone(), self.rotation * rhs); // TODO: do not clone.
+    [val ref] => Isometry::from_parts(self.translation, self.rotation * *rhs);
+    [ref ref] => Isometry::from_parts(self.translation.clone(), self.rotation * *rhs);
 );
 
 // Isometry ÷ UnitComplex
@@ -528,7 +528,7 @@ isometry_from_composition_impl_all!(
     self: Isometry<N, U2, UnitComplex<N>>, rhs: UnitComplex<N>,
     Output = Isometry<N, U2, UnitComplex<N>>;
     [val val] => Isometry::from_parts(self.translation, self.rotation / rhs);
-    [ref val] => Isometry::from_parts(self.translation.clone(), self.rotation.clone() / rhs); // TODO: do not clone.
-    [val ref] => Isometry::from_parts(self.translation, self.rotation / rhs.clone());
-    [ref ref] => Isometry::from_parts(self.translation.clone(), self.rotation.clone() / rhs.clone());
+    [ref val] => Isometry::from_parts(self.translation.clone(), self.rotation / rhs); // TODO: do not clone.
+    [val ref] => Isometry::from_parts(self.translation, self.rotation / *rhs);
+    [ref ref] => Isometry::from_parts(self.translation.clone(), self.rotation / *rhs);
 );
diff --git a/src/geometry/orthographic.rs b/src/geometry/orthographic.rs
index 9840f271..bd1e73c7 100644
--- a/src/geometry/orthographic.rs
+++ b/src/geometry/orthographic.rs
@@ -26,7 +26,7 @@ impl<N: RealField> Copy for Orthographic3<N> {}
 impl<N: RealField> Clone for Orthographic3<N> {
     #[inline]
     fn clone(&self) -> Self {
-        Self::from_matrix_unchecked(self.matrix.clone())
+        Self::from_matrix_unchecked(self.matrix)
     }
 }
 
diff --git a/src/geometry/perspective.rs b/src/geometry/perspective.rs
index c11b7632..bd8abac2 100644
--- a/src/geometry/perspective.rs
+++ b/src/geometry/perspective.rs
@@ -27,7 +27,7 @@ impl<N: RealField> Copy for Perspective3<N> {}
 impl<N: RealField> Clone for Perspective3<N> {
     #[inline]
     fn clone(&self) -> Self {
-        Self::from_matrix_unchecked(self.matrix.clone())
+        Self::from_matrix_unchecked(self.matrix)
     }
 }
 
diff --git a/src/geometry/quaternion.rs b/src/geometry/quaternion.rs
index 3d2e6d0d..e860a8b8 100755
--- a/src/geometry/quaternion.rs
+++ b/src/geometry/quaternion.rs
@@ -335,7 +335,7 @@ where
     where
         N: RealField,
     {
-        let mut res = self.clone();
+        let mut res = *self;
 
         if res.try_inverse_mut() {
             Some(res)
diff --git a/src/geometry/similarity_ops.rs b/src/geometry/similarity_ops.rs
index 959ac3a3..319d8647 100644
--- a/src/geometry/similarity_ops.rs
+++ b/src/geometry/similarity_ops.rs
@@ -240,7 +240,7 @@ md_assign_impl_all!(
     (U3, U3), (U3, U3) for;
     self: Similarity<N, U3, UnitQuaternion<N>>, rhs: UnitQuaternion<N>;
     [val] => self.isometry.rotation *= rhs;
-    [ref] => self.isometry.rotation *= rhs.clone();
+    [ref] => self.isometry.rotation *= *rhs;
 );
 
 md_assign_impl_all!(
@@ -257,7 +257,7 @@ md_assign_impl_all!(
     (U2, U2), (U2, U2) for;
     self: Similarity<N, U2, UnitComplex<N>>, rhs: UnitComplex<N>;
     [val] => self.isometry.rotation *= rhs;
-    [ref] => self.isometry.rotation *= rhs.clone();
+    [ref] => self.isometry.rotation *= *rhs;
 );
 
 md_assign_impl_all!(
diff --git a/src/geometry/unit_complex_ops.rs b/src/geometry/unit_complex_ops.rs
index af1a32f1..ef227023 100644
--- a/src/geometry/unit_complex_ops.rs
+++ b/src/geometry/unit_complex_ops.rs
@@ -306,9 +306,9 @@ complex_op_impl_all!(
     self: UnitComplex<N>, rhs: Translation<N, U2>,
     Output = Isometry<N, U2, UnitComplex<N>>;
     [val val] => Isometry::from_parts(Translation::from(&self *  rhs.vector), self);
-    [ref val] => Isometry::from_parts(Translation::from( self *  rhs.vector), self.clone());
+    [ref val] => Isometry::from_parts(Translation::from( self *  rhs.vector), *self);
     [val ref] => Isometry::from_parts(Translation::from(&self * &rhs.vector), self);
-    [ref ref] => Isometry::from_parts(Translation::from( self * &rhs.vector), self.clone());
+    [ref ref] => Isometry::from_parts(Translation::from( self * &rhs.vector), *self);
 );
 
 // Translation × UnitComplex
@@ -319,8 +319,8 @@ complex_op_impl_all!(
     Output = Isometry<N, U2, UnitComplex<N>>;
     [val val] => Isometry::from_parts(self, right);
     [ref val] => Isometry::from_parts(self.clone(), right);
-    [val ref] => Isometry::from_parts(self, right.clone());
-    [ref ref] => Isometry::from_parts(self.clone(), right.clone());
+    [val ref] => Isometry::from_parts(self, *right);
+    [ref ref] => Isometry::from_parts(self.clone(), *right);
 );
 
 // UnitComplex ×= UnitComplex
diff --git a/src/linalg/inverse.rs b/src/linalg/inverse.rs
index 79d64121..2cb10351 100644
--- a/src/linalg/inverse.rs
+++ b/src/linalg/inverse.rs
@@ -40,7 +40,7 @@ impl<N: ComplexField, D: Dim, S: StorageMut<N, D, D>> SquareMatrix<N, D, S> {
             match dim {
                 0 => true,
                 1 => {
-                    let determinant = self.get_unchecked((0, 0)).clone();
+                    let determinant = *self.get_unchecked((0, 0));
                     if determinant.is_zero() {
                         false
                     } else {