hello world of tensorflow

Tensorflow/tf.py

@@ -0,0 +1,50 @@
+#%%
+import tensorflow as tf
+import time
+
+t = time.time()
+x = tf.Variable(7,name="x")
+y = tf.Variable(2,name="y")
+f = x*x*x + y + 2
+t1 = time.time() - t
+print(t1)
+
+#%%
+
+t = time.time()
+sess = tf.Session()
+sess.run(x.initializer)
+sess.run(y.initializer)
+t1 = time.time() - t
+print(t1)
+
+#%%
+t = time.time()
+result = sess.run(f)
+print(result)
+sess.close
+t1 = time.time() - t
+print(t1)
+
+#%%
+with tf.Session() as sess:
+    x.initializer.run()
+    y.initializer.run()
+    result = f.eval()
+    print(result)
+
+#%%
+init = tf.global_variables_initializer()
+# prepare an init node
+with tf.Session() as sess:
+    init.run() # actually initialize all the variables
+    result = f.eval()
+    print(result)
+
+#%%
+sess = tf.InteractiveSession()
+init.run()
+result = f.eval()
+print(result)
+sess.close()
+