Python cos () function

Describe

cos () returns the cosine of the arc of X.

Grammar

The following is the syntax for the Cos () method:

Import Mathmath.cos (x)

Note:cos () is not directly accessible, you need to import the math module, and then call the method through the math static object.

Parameters

• X--a numeric value.

return value

Returns the cosine of the radian of X, between 1 and 1.

Instance

The following shows an example of using the Cos () method:

#!/usr/bin/python3import mathprint ("cos (3):",  Math.Cos (3)) print ("cos ( -3):",  Math.Cos ( -3)) print ("cos (0): ",  math.cos (0)) print (" cos (MATH.PI): ",  Math.Cos (Math.PI)) print (" cos (2*MATH.PI): ",  Math.Cos ( Math.PI))

When the above instance is run, the output is:

COS (3):  -0.9899924966004454cos ( -3):  -0.9899924966004454cos (0):  1.0cos (Math.PI):  -1.0cos ( Math.PI):  1.0

Python cos () function