asin()

asin(x) returns arc sin of x. Input number is in radian
import math
print(math.asin(1))     # 1.5707963267948966
print(math.asin(0.56))  # 0.5943858000010622
print(math.asin(-0.56)) # -0.5943858000010622
print(math.asin(-1))    # -1.5707963267948966
print(math.asin(0))     # 0.0 
Note that all the inputs are in radian.
For any value more than 1 or less than -1 , we will get ValueError
print(math.asin(1.01))
print(math.asin(-1.01))
Above code will generate error.

Inputs in degree

We can convert radian value to degree and use the same
import math
in_degree = 57
in_redian = math.radians(in_degree)
print(math.asin(in_redian))
Output
1.4691422654884898
1 radian = 57.2957914331 degree
1 degree = 0.0174533 radian

Drawing graph of asin()

In our Trigonometric language asin is also know as arcsin. Using this we will use Matplotlib to generate graph of asin asin graph
import matplotlib.pyplot as plt
x=[]
y=[]
i=-1
while (i<=1):
    x.append(i)
    y.append(math.asin(i))
    i=i+0.01
plt.plot(x,y)    
plt.show()
acos() cos() sin() tan()


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