acos

math.acos(x) -> float

Returns the arc cosine of x, in radians (math, numpy).

x	The cosine ratio

REMARKS

* The result is between 0 and pi.
* You can use the math.atan function to
* You can use the math.asin function to
* You can use the math.cos function to
* You can use the np.acos function to
* There is no equivalent VBA function.
* The equivalent Excel function is ACOS

import math 
import numpy as np 

_radians : int = 1 
_angle : float = math.acos(_radians) 
print(_angle) 

print(np.acos(20))