# -*- coding:utf-8 -*-

import tensorflow as tf

w1 = tf.Variable(tf.random_normal([2, 3], stddev=1))
w2 = tf.Variable(tf.random_normal([3, 1], stddev=1))

# read data

x = tf.placeholder(dtype=tf.float32, shape=(3, 2), name="input")

a = tf.matmul(x, w1)
y = tf.matmul(a, w2)

sess = tf.Session()
init_op = tf.global_variables_initializer()
sess.run(init_op)

# error
# print sess.run(y)

print sess.run(y, feed_dict={x: [[0.7, 0.9], [0.1, 0.4], [0.5, 0.8]]})
print "---------------------------------------------------------------"
print sess.run(w1)
print sess.run(w2)

