Python| TensorFlow asinh() 方法

Tensorflow 是谷歌开发的开源机器学习库。它的应用之一是开发深度神经网络。

模块tensorflow.math为许多基本的数学运算提供支持。函数tf.asinh() [别名tf.math.asinh ] 为 Tensorflow 中的反双曲正弦函数提供支持。输入类型是张量，如果输入包含多个元素，则计算元素级反双曲正弦值。

Syntax: tf.asinh(x, name=None) or tf.math.asinh(x, name=None)

Parameters:
x: A tensor of any of the following types: float16, float32, float64, complex64, or complex128.
name (optional): The name for the operation.

Return type: A tensor with the same type as that of x.

编程需要懂一点英语

代码#1：

Python3

# Importing the Tensorflow library
import tensorflow as tf
    
# A constant vector of size 6
a = tf.constant([1.0, -0.5, 3.4, 22.1, 0.0, -6.5],
                               dtype = tf.float32)
    
# Applying the asinh function and
# storing the result in 'b'
b = tf.asinh(a, name ='asinh')
    
# Initiating a Tensorflow session
with tf.Session() as sess:
    print('Input type:', a)
    print('Input:', sess.run(a))
    print('Return type:', b)
    print('Output:', sess.run(b))

Python3

# Importing the Tensorflow library
import tensorflow as tf
   
# Importing the NumPy library
import numpy as np
   
# Importing the matplotlib.pyplot function
import matplotlib.pyplot as plt
   
# A vector of size 15 with values from -10 to 10
a = np.linspace(-10, 10, 15)
   
# Applying the inverse hyperbolic sine
# function and storing the result in 'b'
b = tf.asinh(a, name ='asinh')
   
# Initiating a Tensorflow session
with tf.Session() as sess:
    print('Input:', a)
    print('Output:', sess.run(b))
    plt.plot(a, sess.run(b), color = 'red', marker = "o") 
    plt.title("tensorflow.asinh") 
    plt.xlabel("X") 
    plt.ylabel("Y") 
   
    plt.show()

输出：

Input type: Tensor("Const_1:0", shape=(6, ), dtype=float32)
Input: [ 1.  -0.5  3.4 22.1  0.  -6.5]
Return type: Tensor("asinh:0", shape=(6, ), dtype=float32)
Output: [ 0.8813736  -0.48121184  1.9378793   3.7892363   0.         -2.5708146 ]

代码 #2：可视化

Python3

# Importing the Tensorflow library
import tensorflow as tf
   
# Importing the NumPy library
import numpy as np
   
# Importing the matplotlib.pyplot function
import matplotlib.pyplot as plt
   
# A vector of size 15 with values from -10 to 10
a = np.linspace(-10, 10, 15)
   
# Applying the inverse hyperbolic sine
# function and storing the result in 'b'
b = tf.asinh(a, name ='asinh')
   
# Initiating a Tensorflow session
with tf.Session() as sess:
    print('Input:', a)
    print('Output:', sess.run(b))
    plt.plot(a, sess.run(b), color = 'red', marker = "o") 
    plt.title("tensorflow.asinh") 
    plt.xlabel("X") 
    plt.ylabel("Y") 
   
    plt.show()

输出：

Input: [-10.          -8.57142857  -7.14285714  -5.71428571  -4.28571429
  -2.85714286  -1.42857143   0.           1.42857143   2.85714286
   4.28571429   5.71428571   7.14285714   8.57142857  10.        ]
Output: [-2.99822295 -2.84496713 -2.66412441 -2.44368627 -2.16177575 -1.77227614
 -1.15447739  0.          1.15447739  1.77227614  2.16177575  2.44368627
  2.66412441  2.84496713  2.99822295]