diff --git a/tensorflow/python/ops/numpy_ops/np_math_ops.py b/tensorflow/python/ops/numpy_ops/np_math_ops.py
index 3cf26095dd8..df3d7cf32ab 100644
--- a/tensorflow/python/ops/numpy_ops/np_math_ops.py
+++ b/tensorflow/python/ops/numpy_ops/np_math_ops.py
@@ -40,6 +40,11 @@ from tensorflow.python.ops.numpy_ops import np_dtypes
 from tensorflow.python.ops.numpy_ops import np_utils
 
 
+pi = np.pi
+e = np.e
+inf = np.inf
+
+
 @np_utils.np_doc_only('dot')
 def dot(a, b):  # pylint: disable=missing-docstring