tf.add(x,y,name=None)
x
:a tensor musut be one of the following types: half
, float32
, float64
, uint8
, int8
, int16
, int32
, int64
, complex64
, complex128
, string
.
y
: A Tensor
. Must have the same type as x
.
name
: A name for the operation (optional).
import tensorflow as tf
a=tf.constant([[1,1],[2,2],[3,3]],dtype=tf.float32)
b=tf.constant([1,-1],dtype=tf.float32)
c=tf.constant([1],dtype=tf.float32)
with tf.Session() as sess:
print('bias_add:')
print(sess.run(tf.nn.bias_add(a, b)))
#执行下面语句错误
#print(sess.run(tf.nn.bias_add(a, c)))
print('add:')
print(sess.run(tf.add(a, c)))
输出结果:
bias_add:
[[ 2. 0.]
[ 3. 1.]
[ 4. 2.]]
add:
[[ 2. 2.]
[ 3. 3.]
[ 4. 4.]]
tf.add_n(inputs,name=None)
函数是实现一个列表的元素的相加。就是输入的对象是一个列表,列表里的元素可以是向量,矩阵等但没有广播功能
例子:
import tensorflow as tf;
import numpy as np;
input1 = tf.constant([1.0, 2.0, 3.0])
input2 = tf.Variable(tf.random_uniform([3]))
output = tf.add_n([input1, input2])
with tf.Session() as sess:
sess.run(tf.initialize_all_variables())
print (sess.run(input1 + input2))
print (sess.run(output))
输出:
[ 1.30945706 2.29760814 3.81558323] [ 1.30945706 2.29760814 3.81558323]原文链接:https://www.cnblogs.com/lovephysics/p/7222022.html