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Python 3 - Number acos() Method
Description
The acos() method returns the arc cosine of x in radians.
Syntax
Following is the syntax for acos() method −
acos(x)
Note − This function is not accessible directly, so we need to import math module and then we need to call this function using math static object.
Parameters
x − This must be a numeric value in the range -1 to 1. If x is greater than 1 then it will generate 'math domain error'.
Return Value
This method returns arc cosine of x, in radians.
Example
The following example shows the usage of the acos() method.
#!/usr/bin/python3 import math print ("acos(0.64) : ", math.acos(0.64)) print ("acos(0) : ", math.acos(0)) print ("acos(-1) : ", math.acos(-1)) print ("acos(1) : ", math.acos(1))
Output
When we run the above program, it produces the following result −
acos(0.64) : 0.876298061168 acos(0) : 1.57079632679 acos(-1) : 3.14159265359 acos(1) : 0.0
python_numbers.htm
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