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Python Tensorflow sinh()用法及代碼示例


Tensorflow是Google開發的開源機器學習庫。它的應用之一是開發深度神經網絡。

模塊tensorflow.math為許多基本的數學運算提供支持。函數tf.sinh()[別名tf.math.sinh]支持Tensorflow中的雙曲正弦函數。它期望以弧度形式輸入。輸入類型為張量,如果輸入包含多個元素,則將計算按元素的雙曲正弦值。

用法:tf.sinh(x, name=None) or tf.math.sinh(x, name=None)

參數
x:以下任何類型的張量:float16,float32,float64,complex64或complex128。
name(可選):操作的名稱。

返回類型:與x具有相同類型的張量。

代碼1:

# Importing the Tensorflow library 
import tensorflow as tf 
  
# A constant vector of size 6 
a = tf.constant([1.0, -0.5, 3.4, -2.1, 0.0, -6.5], 
                               dtype = tf.float32) 
  
# Applying the sinh function and 
# storing the result in 'b' 
b = tf.sinh(a, name ='sinh') 
  
# 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))

輸出:

Input type:Tensor("Const_3:0", shape=(6, ), dtype=float32)
Input:[ 1.  -0.5  3.4 -2.1  0.  -6.5]
Return type:Tensor("sinh:0", shape=(6, ), dtype=float32)
Output:[   1.1752012   -0.5210953   14.965365    -4.0218563    0.
 -332.57004  ]

代碼2:可視化

# Importing the Tensorflow library 
import tensorflow as tf 
  
# Importing the NumPy library 
import numpy as np 
  
# Importing the matplotlib.pylot function 
import matplotlib.pyplot as plt 
  
# A vector of size 15 with values from -5 to 5 
a = np.linspace(-5, 5, 15) 
  
# Applying the hyperbolic sine function and 
# storing the result in 'b' 
b = tf.sinh(a, name ='sinh') 
  
# 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.sinh")  
    plt.xlabel("X")  
    plt.ylabel("Y")  
  
    plt.show()

輸出:

Input:[-5.         -4.28571429 -3.57142857 -2.85714286 -2.14285714 -1.42857143
 -0.71428571  0.          0.71428571  1.42857143  2.14285714  2.85714286
  3.57142857  4.28571429  5.        ]
Output:[-74.20321058 -36.32033021 -17.76962587  -8.67713772  -4.20321865
  -1.96654142  -0.77659271   0.           0.77659271   1.96654142
   4.20321865   8.67713772  17.76962587  36.32033021  74.20321058]



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注:本文由純淨天空篩選整理自vaibhav29498大神的英文原創作品 Python | Tensorflow sinh() method。非經特殊聲明,原始代碼版權歸原作者所有,本譯文未經允許或授權,請勿轉載或複製。