In [1]:

    

import tensorflow as tf


    

In [2]:

    

var = tf.Variable(10)
const = tf.constant(5)
calc_op = var * const
assign_op = tf.assign(var, calc_op)


    

In [3]:

    

with tf.Session() as sess:
    sess.run(tf.global_variables_initializer())
    
    print(sess.run(var))
    
    sess.run(assign_op)
    print(sess.run(var))
    
    sess.run(assign_op)
    print(sess.run(var))


    

    




10
50
250

In [4]:

    

with tf.Session() as sess:
    sess.run(tf.global_variables_initializer())
    
    print(sess.run(var))


    

    




10