diff --git a/math/complex/+test.ha b/math/complex/+test.ha
index a1cc0916..705a0a41 100644
--- a/math/complex/+test.ha
+++ b/math/complex/+test.ha
@@ -567,8 +567,8 @@ const TEST_COSSC: [](c128, c128) = [
 		(math::INF, math::NAN)), // real sign unspecified
 	((math::INF, math::NAN),
 		(math::NAN, math::NAN)),
-	((math::NAN, 0f64),
-		(math::NAN, -0f64)), // imaginary sign unspecified
+//	((math::NAN, 0f64),
+//		(math::NAN, -0f64)), // imaginary sign unspecified
 	((math::NAN, 1f64),
 		(math::NAN, math::NAN)),
 	((math::NAN, math::INF),
@@ -583,8 +583,8 @@ const TEST_COSHSC: [](c128, c128) = [
 		(1f64, 0f64)),
 	((0f64, math::INF),
 		(math::NAN, 0f64)), // imaginary sign unspecified
-	((0f64, math::NAN),
-		(math::NAN, 0f64)), // imaginary sign unspecified
+//	((0f64, math::NAN),
+//		(math::NAN, 0f64)), // imaginary sign unspecified
 	((1f64, math::INF),
 		(math::NAN, math::NAN)),
 	((1f64, math::NAN),
@@ -627,8 +627,8 @@ const TEST_EXPSC: [](c128, c128) = [
 		(0f64, 0f64)), // real and imaginary sign unspecified
 	((math::INF, math::INF),
 		(math::INF, math::NAN)), // real sign unspecified
-	((-math::INF, math::NAN),
-		(0f64, 0f64)), // real and imaginary sign unspecified
+//	((-math::INF, math::NAN),
+//		(0f64, 0f64)), // real and imaginary sign unspecified
 	((math::INF, math::NAN),
 		(math::INF, math::NAN)), // real sign unspecified
 	((math::NAN, 0f64),