adde basic examples

basic_operations.py

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+import tensorflow as tf
+
+#With constants
+a = tf.constant(2)
+b = tf.constant(3)
+
+with tf.Session() as sess:
+    print "a=2, b=3"
+    print "Addition with constants: %i" % sess.run(a+b)
+    print "Multiplication with constants: %i" % sess.run(a*b)
+
+
+#With variables
+a = tf.placeholder(tf.types.int16)
+b = tf.placeholder(tf.types.int16)
+
+add = tf.add(a, b)
+mul = tf.mul(a, b)
+
+with tf.Session() as sess:
+    print "Addition with variables: %i" % sess.run(add, feed_dict={a: 2, b: 3})
+    print "Multiplication with variables: %i" % sess.run(mul, feed_dict={a: 2, b: 3})

helloworld.py

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+import tensorflow as tf
+
+#Simple hello world using TensorFlow
+
+hello = tf.constant('Hello, TensorFlow!')
+
+sess = tf.Session()
+
+print sess.run(hello)