text: import tensorflow as tf 
  import numpy as np 
  
  # Basic instructions
  matrix_1=tf.constant([[3.,3.]])
  matrix_2=tf.constant([[2.],[2.]])
  product=tf.multiply(matrix_1,matrix_2)
  
  with tf.Session() as sess:
  	with tf.device("/gpu:1"):
  		result=sess.run([product])
  		print(result)
  
  # Interactive session
  with tf.InteractiveSession() as sess:
  #sess=tf.InteractiveSession()
  	x=tf.Variable([3.,2.])
  	b=tf.constant([1.,5.])
  	x.initializer.run()
  	sub_1=tf.subtract(x,b)
  	print(sub_1.eval())
  
  
  