import tensorflow as tf
matrix1=tf.constant([3,3])
matrix2=tf.constant([[2],[2]])

product=tf.matmul(matrix1,matrix2) #numpy np.dot

sess=tf.Session()
result=sess.run(product)
print(result)
sess.close()

with tf.Session() as sess:
    result2=sess.run(product)
    print(result2)