Starting Out with Python (4th Edition)
4th Edition
ISBN: 9780134444321
Author: Tony Gaddis
Publisher: PEARSON
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Chapter 12, Problem 7PE
Program Plan Intro
Recursive Power Method
Program Plan:
- • Global variable declaration:
- ○ Initialize the variable “minimum” as “1”.
- ○ Initialize the variable “maximum” as “100”.
- • Define the “main()” function:
- ○ Initialize the variable “number” as “0”.
- ○ Initialize the variable “exp” as “0”.
- ○ Get the input from the user and store it to the variable “number”.
- ○ Check the value of “exp”
- ■ If it is less than “minimum” or greater than “maximum”, then get the exponent “exp” from the user.
- ○ Call the function “recursivePower()” and pass the two arguments “number” and “exp”.
- ○ Display the result on the output screen.
- ■ If it is less than “minimum” or greater than “maximum”, then get the exponent “exp” from the user.
- • Define the “recursivePower(x, y)” function:
- ○ Check the value of “y”.
- ■ If it is equal to “0”, then returns is “1”.
- ■ Otherwise, call the function “recursivePower()” recursively along with the arguments “x” and the decremented value of “y”.
- ■ Display the result on the output screen.
- ○ Check the value of “y”.
- • Call the “main()” function.
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7. Recursive Power Method
In Python, 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 the exponent is a nonnegative integer.
Recursive Power FunctionWrite 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. Demonstrate the function in a program.
SAMPLE RUN #0: ./recursiveExponent
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2^3=8↵ 2^4=16↵ 3^3=27↵ 6^3=216↵ 7^7=823543↵ 10^9=1000000000↵
Recursive PrintingDesign a recursive function that accepts an integer argument,n , and prints the numbers 1 up through n .
Chapter 12 Solutions
Starting Out with Python (4th Edition)
Ch. 12.2 - It is said that a recursive algorithm has more...Ch. 12.2 - Prob. 2CPCh. 12.2 - What is a recursive case?Ch. 12.2 - What causes a recursive algorithm to stop calling...Ch. 12.2 - What is direct recursion? What is indirect...Ch. 12 - Prob. 1MCCh. 12 - A function is called once from a program's main...Ch. 12 - Prob. 3MCCh. 12 - Prob. 4MCCh. 12 - Prob. 5MC
Ch. 12 - Prob. 6MCCh. 12 - Any problem that can be solved recursively can...Ch. 12 - Actions taken by the computer when a function is...Ch. 12 - A recursive algorithm must _______ in the...Ch. 12 - A recursive algorithm must ______ in the base...Ch. 12 - An algorithm that uses a loop will usually run...Ch. 12 - Some problems can be solved through recursion...Ch. 12 - It is not necessary to have a base case in all...Ch. 12 - In the base case, a recursive method calls itself...Ch. 12 - In Program 12-2 , presented earlier in this...Ch. 12 - In this chapter, the rules given for calculating...Ch. 12 - Is recursion ever required to solve a problem?...Ch. 12 - When recursion is used to solve a problem, why...Ch. 12 - How is a problem usually reduced with a recursive...Ch. 12 - What will the following program display? def...Ch. 12 - Prob. 2AWCh. 12 - The following function uses a loop. Rewrite it as...Ch. 12 - Prob. 1PECh. 12 - Prob. 2PECh. 12 - Prob. 3PECh. 12 - Largest List Item Design a function that accepts a...Ch. 12 - Recursive List Sum Design a function that accepts...Ch. 12 - Prob. 6PECh. 12 - Prob. 7PECh. 12 - Ackermann's Function Ackermann's Function is a...
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