diff --git a/benchmarks/bench-switch.py b/benchmarks/bench-switch.py
index 5aa6d1d27263d600fe24dd7b0a9f75369e544beb..6f42cc5a5f9db13b2a1f8566136a3546761cca11 100644
--- a/benchmarks/bench-switch.py
+++ b/benchmarks/bench-switch.py
@@ -44,3 +44,14 @@ cmd4 = "timeit quat.coeffs()"
 print(cmd4)
 ipython.magic(cmd4)
 print("\n")
+
+cmd5 = "timeit np.asmatrix(quat.coeffs())"
+print(cmd5)
+ipython.magic(cmd5)
+print("\n")
+
+a_matrix = np.matrix(a);
+cmd6 = "timeit np.asarray(a_matrix)"
+print(cmd6)
+ipython.magic(cmd6)
+print("\n")