diff --git a/basis/math/matrices/matrices-tests.factor b/basis/math/matrices/matrices-tests.factor
index 20942356de..3ee1ddbd6d 100644
--- a/basis/math/matrices/matrices-tests.factor
+++ b/basis/math/matrices/matrices-tests.factor
@@ -106,4 +106,7 @@ USING: math.matrices math.vectors tools.test math ;
 [ { 1 0 0 } ] [ { 1 1 0 } { 1 0 0 } proj ] unit-test
 
 [ { { { 1 "a" } { 1 "b" } } { { 2 "a" } { 2 "b" } } } ]
-[ { 1 2 } { "a" "b" } cross-zip ] unit-test
\ No newline at end of file
+[ { 1 2 } { "a" "b" } cross-zip ] unit-test
+
+[ { { 4181 6765 } { 6765 10946 } } ]
+[ { { 0 1 } { 1 1 } } 20 m^n ] unit-test