import tensorflow as tf
import numpy as np
import os
os.environ['TF_CPP_MIN_LOG_LEVEL'] = '2'


def foo01():
    x = np.array([[1, 1, 1], [1, -8, 1], [1, 1, 1]])
    w = tf.Variable(initial_value=x)
    sess = tf.Session()
    sess.run(tf.global_variables_initializer())
    print(sess.run(w))


def foo02():
    x = tf.Variable(3)
    y = tf.Variable(5)
    z = tf.add(x, y)
    sess = tf.Session()
    sess.run(tf.global_variables_initializer())
    print(sess.run(z))


def foo03():
    a = tf.Variable(tf.ones([3, 2]))
    b = tf.Variable(tf.ones([2, 3]))
    product = tf.matmul(5.0 * a, 4.0 * b)
    sess = tf.Session()
    sess.run(tf.global_variables_initializer())
    print(sess.run(product))


print(tf.__path__)
foo01()
foo02()
foo03()