Python – tensorflow.math.is_inf()

TensorFlow是谷歌设计的开源Python库，用于开发机器学习模型和深度学习神经网络。

is_inf()如果元素是无限的，则返回真，否则返回假。

语法: tensorflow.math.is_inf( x, name)

参数:

• x:它是一个张量。允许的d类型是bfloat16, half, float32, float64。
• name（可选）:它定义了该操作的名称

返回：它返回一个dtype bool的张量。

示例 1:

# importing the library
import tensorflow as tf
import numpy as np
 
# Initializing the input tensor
a = tf.constant([7, 8, 13, 11, np.inf], dtype = tf.float64)
 
# Printing the input tensor
print('a: ', a)
 
# Calculating the result
res = tf.math.is_inf(a)
 
# Printing the result
print('Result: ', res)

输出:

a:  tf.Tensor([ 7.  8. 13. 11. inf], shape=(5, ), dtype=float64)
Result:  tf.Tensor([False False False False  True], shape=(5, ), dtype=bool)

实例2：本例使用numpy nan并检查其无限性。

# Importing the library
import tensorflow as tf
import numpy as np
 
# Initializing the input tensor
a = tf.constant([7, 8, 13, 11, np.nan], dtype = tf.float64)
 
# Printing the input tensor
print('a: ', a)
 
# Calculating the result
res = tf.math.is_inf(a)
 
# Printing the result
print('Result: ', res)

输出:

a:  tf.Tensor([ 7.  8. 13. 11. nan], shape=(5, ), dtype=float64)
Result:  tf.Tensor([False False False False False], shape=(5, ), dtype=bool)