diff --git a/libraries/base/common/python/try_round.py b/libraries/base/common/python/try_round.py
index 7de2e47c1fd87eee6e4b59f31ea7ccb8345c5ed6..0959b31a6677248904744e3273e4a6cae7ade637 100755
--- a/libraries/base/common/python/try_round.py
+++ b/libraries/base/common/python/try_round.py
@@ -40,6 +40,10 @@ import matplotlib.pylab as plt
 Usage:
 > python try_round.py -h
 
+Note:
+. For values exactly halfway between rounded decimal values, NumPy rounds to
+  the nearest even value. Thus 1.5 and 2.5 round to 2.0, -0.5 and 0.5 round
+  to 0.0, etc.
 """
 
 import argparse