cos(pi) code example

Example 1: cos in python in degrees

math.cos(math.radians(1))
# math.cos takes radians
# math.radians converts radians to degrees

Example 2: cos in python

from math import cos,pi
a = pi
b = cos(a)
c = 180
d = cos(c)
print(b,d) # returns -1,-0.59846
# cos function works with radians