import tensorflow as tf
import numpy as np

a = np.random.random([2, 6])
b = np.random.random([6, 3])
ta = tf.Variable(a)
tb = tf.Variable(b)
multiply = tf.matmul(ta, tb)
init_op = tf.global_variables_initializer()

s = tf.InteractiveSession()
s.run(init_op)
s.run(multiply)