Question

python programming

Design a function that uses recursion to raise a number to a power. The function should accept two arguments: the number to be raised and the exponent. Assume that the exponent is a nonnegative integer.

Answer 1

#To find power of n using recursion function name power
#First parameter (num) is number and second parameter (power_n) exponent
def power(num,power_n):
   #if power_n equals zero that means you need to return the value i.e. 1
    if power_n == 0:
        return 1
   #if power_n == 1 means exponent to that number is same number that you enetered
    elif power_n == 1:
        return num
   # otherwise below function call will execute
   #every time you call the function you need to decrement the value of power_n and pass it to function call
    else:
        return num * power(num,power_n-1)

NOTE: Below is the snapshot of code check for proper indentation

NOTE: Code with driver code and output

Driver code take cares of the negative number entered by the user and display the proper message

NOTE : OUTPUT