From 89ba97bca929ebce0d7464b13a6ebc629a31f77a Mon Sep 17 00:00:00 2001
From: William Darling <wdarling@microsoft.com>
Date: Thu, 7 Apr 2016 17:02:37 +0200
Subject: [PATCH] added skeleton code and basic documentation for ElementDivide

---
 contrib/Python/cntk/graph.py      | 12 ++++++++++++
 contrib/Python/cntk/ops/linear.py | 17 ++++++++++++++---
 2 files changed, 26 insertions(+), 3 deletions(-)

diff --git a/contrib/Python/cntk/graph.py b/contrib/Python/cntk/graph.py
index 95480e75c..dd468eeaf 100644
--- a/contrib/Python/cntk/graph.py
+++ b/contrib/Python/cntk/graph.py
@@ -93,6 +93,18 @@ class ComputationNode(object):
         # NOTE supported in Python 3.5
         return Times(other, self)
 
+    def __div__(self, other):
+        if not isinstance(other, ComputationNode):
+            # TODO: in case of non-scalars we have to pull in a reader
+            other = constant(other)
+        return ElementDivide(self, other)
+
+    def __rdiv__(self, other):
+        if not isinstance(other, ComputationNode):
+            # TODO: in case of non-scalars we have to pull in a reader
+            other = constant(other)
+        return ElementDivide(other, self)
+
     def __abs__(self):
         return Abs(self)
 
diff --git a/contrib/Python/cntk/ops/linear.py b/contrib/Python/cntk/ops/linear.py
index 1b15482c5..3aee56b82 100644
--- a/contrib/Python/cntk/ops/linear.py
+++ b/contrib/Python/cntk/ops/linear.py
@@ -12,7 +12,7 @@ from cntk.ops.cntk1 import Times, Plus
 
 def plus(left_operand, right_operand, name=None):
     """
-    tensor addition opearation
+    tensor addition operation
     Args:
         left_operand: Left side tensor
         right_operand: Right side tensor
@@ -25,7 +25,7 @@ def plus(left_operand, right_operand, name=None):
 
 def times(left_operand, right_operand, name=None):
     """
-    tensor times opearation
+    tensor times operation
     Args:
         left_operand: Left side tensor
         right_operand: Right side tensor
@@ -36,4 +36,15 @@ def times(left_operand, right_operand, name=None):
     
     return Times(left_operand, right_operand, var_name = name)    
 
-
+def element_divide(left_operand, right_operand, name=None):
+    """
+    element-wise division operation
+    Args:
+        left_operand: Left side tensor
+        right_operand: Right side tensor
+        var_name: the name of the node in the network            
+    Returns:
+        ElementDivide node
+    """
+    
+    return ElementDivide(left_operand, right_operand, var_name = name)
\ No newline at end of file