1 files changed, 11 insertions, 0 deletions
diff --git a/mysql-test/t/func_math.test b/mysql-test/t/func_math.test
index b6e2d3bd725..0f473abb96d 100644
--- a/mysql-test/t/func_math.test
+++ b/mysql-test/t/func_math.test
@@ -29,4 +29,15 @@ explain extended select rand(999999),rand();
 select pi(),sin(pi()/2),cos(pi()/2),abs(tan(pi())),cot(1),asin(1),acos(0),atan(1);
 explain extended select pi(),sin(pi()/2),cos(pi()/2),abs(tan(pi())),cot(1),asin(1),acos(0),atan(1);
 select degrees(pi()),radians(360);
+
+#
+# Bug #2338 Trignometric arithmatic problems 
+#
+
+SELECT ACOS(1.0);
+SELECT ASIN(1.0);
+SELECT ACOS(0.2*5.0);
+SELECT ACOS(0.5*2.0);
+SELECT ASIN(0.8+0.2);
+SELECT ASIN(1.2-0.2);
 explain extended select degrees(pi()),radians(360);