📜  Python – math.atanh()函数

📅  最后修改于: 2022-05-13 01:54:40.878000             🧑  作者: Mango

Python – math.atanh()函数

数学模块包含许多用于数学运算的函数。 math.atanh()函数将数字的双曲反正切作为值返回。在这个函数中传递的值应该在 -0.99 到 0.99 之间

下面的例子说明了上述函数的使用:

示例 1:

# Python code to implement
# the atanh()function
   
# importing "math"
# for mathematical operations  
import math   
  
# Return the hyperbolic arctangent of numbers 
print (math.asinh(0.17))
print (math.asinh(0.56))
print (math.asinh(0.245))
print (math.asinh(-0.3445))  

输出:

0.1691916359351954
0.5342240739536623
0.24261291139707475
-0.33802589861247084

示例 2:

# Python code to implement
# the atanh()function
import math 
import numpy as np 
import matplotlib.pyplot as plt  
     
in_array = np.linspace(-np.pi / 3.5, np.pi / 3.5, 10)  
  
print("Input_Array : \n", in_array)
  
out_array = [] 
     
for i in range(len(in_array)): 
    out_array.append(math.atanh(in_array[i])) 
    i += 1
     
print("\nOutput_Array : \n", out_array)   
   
plt.plot(in_array, out_array, "go:")  
plt.title("math.atanh()")  
plt.xlabel("X")  
plt.ylabel("Y")  
plt.show()  

输出:

Input_Array : 
 [-0.8975979 -0.6981317 -0.4986655 -0.2991993 -0.0997331  0.0997331
  0.2991993  0.4986655  0.6981317  0.8975979]

Output_Array : 
 [-1.459718446245292, -0.8636465496349238, -0.547528391492765, -0.30863994644251713, -0.10006575914805733, 0.10006575914805743, 0.30863994644251724, 0.5475283914927653, 0.863646549634924, 1.459718446245292]