What is math.acos() in Python?
The acos() functionarc cosine function
Figure 1 shows the mathematical representation of the acos() function, and Figure 2 shows the visual representation of the acos() function.
Note: The
mathmodule is required for this function.
To convert radians to degrees, use the following formula:
degrees = radians * ( 180.0 / pi )
Syntax
acos(num)
Parameter
This function requires a number as a parameter. The parameter must be a double value between -1 and 1.
- -1 <= parameter <= 1
Return value
acos() returns the inverse cosine of a number (radians) that is sent as a parameter. The return value lies in interval [0, pi] radians.
Example
import math#positive number in radiansprint "The value of acos(0.5) : ", math.acos(0.5), "Radians"#negative number in radiansprint "The value of acos(-0.5) : ", math.acos(-0.5), "Radians"#applying acos() and then converting the result in radians to degrees#radians = 0.5#PI = 3.14159265result = math.acos(0.5) * (180.0 / math.pi)print "The value of acos(0.5) : ", result ,"Degrees"
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