Math module contains a number of functions which is used for mathematical operations. The math.asin() function returns the arc sine value of a number. The value passed in this function should be between -1 to 1.

Syntax: math.asin(x) Parameter:This method accepts only single parameters.

• x :This parameter is the value to be passed to asin()

Returns:This function returns the arc sine value of a number.

Time Complexity: O(1)

Auxiliary Space: O(1)

Below examples illustrate the use of above function: Example 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))

Output:

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

Example 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()

Output:

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]