📜  Python – math.asin()函数

📅  最后修改于: 2022-05-13 01:55:08.624000             🧑  作者: Mango

Python – math.asin()函数

数学模块包含许多用于数学运算的函数。 math.asin()函数返回数字的反正弦值。在这个函数中传递的值应该在 -1 到 1 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 acos()function
        
# importing "math"
# for mathematical operations  
import math  
       
a = math.pi / 6
        
# returning the value of arc sine of pi / 6  
print ("The value of arc sine of pi / 6 is : ", end ="")  
print (math.asin(a))

输出:

The value of arc sine of pi / 6 is : 0.5510695830994463

示例 2:

# Python code to implement
# the aasin()function
import math 
import matplotlib.pyplot as plt  
    
in_array = [-0.14159265, -0.57039399, -0.28559933, 
            0.28559933, 0.57039399,  0.94159265] 
    
out_array = [] 
    
for i in range(len(in_array)): 
    out_array.append(math.asin(in_array[i])) 
    i += 1
       
print("Input_Array : \n", in_array)  
print("\nOutput_Array : \n", out_array)    
  
plt.plot(in_array, out_array, "go:")  
plt.title("math.asin()")  
plt.xlabel("X")  
plt.ylabel("Y")  
plt.show()  

输出:

Input_Array : 
 [-0.14159265, -0.57039399, -0.28559933, 0.28559933, 0.57039399, 0.94159265]

Output_Array : 
 [-0.14207008957392517, -0.6069854488522558, -0.2896317474780172, 0.2896317474780172, 0.6069854488522558, 1.227328875116741]