Question

THIS IS IN PYTHON 3.0

Let's call the first function power(a,b). Use the built-in power function a**b in python to write a second function called testing(c) that tests if the first function is working or not.

I already have the function power(a,b), which is as follows:

def power(a, b):

    if (b == 0): return 1

    elif (int(b % 2) == 0):

        return (power(a, int(b / 2)) *

               power(a, int(b / 2)))

    else:

        return (a * power(a, int(a / 2)) *

                   power(a, int(b / 2)))

Answer 1

Here is the answer for your question in Python Programming Language.

CODE :

"""Declaring a and b values as global.""" a = 3 b = 4 def power(a, b): if b == 0: return 1 elif b%2 == 0: return power(a, int(b/2))*power(a, int(b/2)) else: return a*power(a, int(b/2))*power(a, int(b/2)) def result(c): """Description : Checks if the result returned by power(a, b) is correct or not.""" if (a**b) == c: """If a power of b equals c returns true""" return True else: """Otherwise returns false""" return False def main(): """Description : Calls power and result functions.""" global a,b c = power(a,b) print("Result returned by power function for {0} power of {1} is {2} which is {3}".format(a,b,c,result(c))) """Calling main()""" main()

SCREENSHOTS :

Please see the screenshots of the code below for indentations of the code. As python is a Language of indentations kindly check the indentations before execution.

OUTPUT :

Any doubts regarding this can be explained with pleasure :)