Python| PyTorch sinh() 方法

PyTorch 是 Facebook 开发的开源机器学习库。它用于深度神经网络和自然语言处理目的。

函数torch.sinh()为 PyTorch 中的双曲正弦函数提供支持。它期望以弧度形式输入。输入类型是张量，如果输入包含多个元素，则计算元素级双曲正弦。

Syntax: torch.sinh(x, out=None)

Parameters:
x: Input tensor
name (optional): Output tensor

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

代码#1：

Python3

# Importing the PyTorch library
import torch
  
# A constant tensor of size 6
a = torch.FloatTensor([1.0, -0.5, 3.4, -2.1, 0.0, -6.5])
print(a)
  
# Applying the sinh function and
# storing the result in 'b'
b = torch.sinh(a)
print(b)

输出：

1.0000
-0.5000
 3.4000
-2.1000
 0.0000
-6.5000
[torch.FloatTensor of size 6]


   1.1752
  -0.5211
  14.9654
  -4.0219
   0.0000
-332.5700
[torch.FloatTensor of size 6]

代码 #2：可视化

Python3

# Importing the PyTorch library
import torch
  
# 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 -5 to 5
a = np.linspace(-5, 5, 15)
  
# Applying the hyperbolic sine function and
# storing the result in 'b'
b = torch.sinh(torch.FloatTensor(a))
  
print(b)
  
# Plotting
plt.plot(a, b.numpy(), color = 'red', marker = "o") 
plt.title("torch.sinh") 
plt.xlabel("X") 
plt.ylabel("Y") 
  
plt.show()

输出：

-74.2032
-36.3203
-17.7696
 -8.6771
 -4.2032
 -1.9665
 -0.7766
  0.0000
  0.7766
  1.9665
  4.2032
  8.6771
 17.7696
 36.3203
 74.2032
[torch.FloatTensor of size 15]