Python3 数字Number Degrees

#!/usr/bin/python3
import math

print ("degrees(3) : ",  math.degrees(3))
print ("degrees(-3) : ",  math.degrees(-3))
print ("degrees(0) : ",  math.degrees(0))
print ("degrees(math.pi) : ",  math.degrees(math.pi))
print ("degrees(math.pi/2) : ",  math.degrees(math.pi/2))
print ("degrees(math.pi/4) : ",  math.degrees(math.pi/4))